diff --git a/ext/json/ext/parser/parser.c b/ext/json/ext/parser/parser.c
index a16d068f..c125f82c 100644
--- a/ext/json/ext/parser/parser.c
+++ b/ext/json/ext/parser/parser.c
@@ -79,7 +79,7 @@ static VALUE CNaN, CInfinity, CMinusInfinity;
 
 static ID i_json_creatable_p, i_json_create, i_create_id, i_create_additions,
           i_chr, i_max_nesting, i_allow_nan, i_symbolize_names, i_object_class,
-          i_array_class, i_key_p, i_deep_const_get, i_match;
+          i_array_class, i_key_p, i_deep_const_get, i_match, i_match_string;
 
 
 #line 108 "parser.rl"
@@ -1376,7 +1376,7 @@ match_i(VALUE regexp, VALUE klass, VALUE memo)
 static char *JSON_parse_string(JSON_Parser *json, char *p, char *pe, VALUE *result)
 {
     int cs = EVIL;
-    VALUE match;
+    VALUE match_string;
 
     *result = rb_str_buf_new(0);
     
@@ -1509,11 +1509,11 @@ case 7:
 
 #line 494 "parser.rl"
 
-    if (json->create_additions && RTEST(match = json->match)) {
+    if (json->create_additions && RTEST(match_string = json->match_string)) {
           VALUE klass;
           VALUE memo = rb_ary_new2(2);
           rb_ary_push(memo, *result);
-          rb_hash_foreach(match, match_i, memo);
+          rb_hash_foreach(match_string, match_i, memo);
           klass = rb_ary_entry(memo, 1);
           if (RTEST(klass)) {
               *result = rb_funcall(klass, i_json_create, 1, *result);
@@ -1692,12 +1692,12 @@ static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self)
             } else {
                 json->array_class = Qnil;
             }
-            tmp = ID2SYM(i_match);
+            tmp = ID2SYM(i_match_string);
             if (option_given_p(opts, tmp)) {
-                VALUE match = rb_hash_aref(opts, tmp);
-                json->match = RTEST(match) ? match : Qnil;
+                VALUE match_string = rb_hash_aref(opts, tmp);
+                json->match_string = RTEST(match_string) ? match_string : Qnil;
             } else {
-                json->match = Qnil;
+                json->match_string = Qnil;
             }
         }
     } else {
@@ -1895,7 +1895,7 @@ static void JSON_mark(JSON_Parser *json)
     rb_gc_mark_maybe(json->create_id);
     rb_gc_mark_maybe(json->object_class);
     rb_gc_mark_maybe(json->array_class);
-    rb_gc_mark_maybe(json->match);
+    rb_gc_mark_maybe(json->match_string);
 }
 
 static void JSON_free(JSON_Parser *json)
@@ -1949,6 +1949,7 @@ void Init_parser()
     i_object_class = rb_intern("object_class");
     i_array_class = rb_intern("array_class");
     i_match = rb_intern("match");
+    i_match_string = rb_intern("match_string");
     i_key_p = rb_intern("key?");
     i_deep_const_get = rb_intern("deep_const_get");
 #ifdef HAVE_RUBY_ENCODING_H
diff --git a/ext/json/ext/parser/parser.h b/ext/json/ext/parser/parser.h
index 877ef670..ed48035d 100644
--- a/ext/json/ext/parser/parser.h
+++ b/ext/json/ext/parser/parser.h
@@ -47,7 +47,7 @@ typedef struct JSON_ParserStruct {
     VALUE object_class;
     VALUE array_class;
 		int create_additions;
-		VALUE match;
+		VALUE match_string;
 } JSON_Parser;
 
 #define GET_PARSER                          \
diff --git a/ext/json/ext/parser/parser.rl b/ext/json/ext/parser/parser.rl
index 53f1dbeb..58626987 100644
--- a/ext/json/ext/parser/parser.rl
+++ b/ext/json/ext/parser/parser.rl
@@ -77,7 +77,7 @@ static VALUE CNaN, CInfinity, CMinusInfinity;
 
 static ID i_json_creatable_p, i_json_create, i_create_id, i_create_additions,
           i_chr, i_max_nesting, i_allow_nan, i_symbolize_names, i_object_class,
-          i_array_class, i_key_p, i_deep_const_get, i_match;
+          i_array_class, i_key_p, i_deep_const_get, i_match, i_match_string;
 
 %%{
     machine JSON_common;
@@ -485,18 +485,18 @@ match_i(VALUE regexp, VALUE klass, VALUE memo)
 static char *JSON_parse_string(JSON_Parser *json, char *p, char *pe, VALUE *result)
 {
     int cs = EVIL;
-    VALUE match;
+    VALUE match_string;
 
     *result = rb_str_buf_new(0);
     %% write init;
     json->memo = p;
     %% write exec;
 
-    if (json->create_additions && RTEST(match = json->match)) {
+    if (json->create_additions && RTEST(match_string = json->match_string)) {
           VALUE klass;
           VALUE memo = rb_ary_new2(2);
           rb_ary_push(memo, *result);
-          rb_hash_foreach(match, match_i, memo);
+          rb_hash_foreach(match_string, match_i, memo);
           klass = rb_ary_entry(memo, 1);
           if (RTEST(klass)) {
               *result = rb_funcall(klass, i_json_create, 1, *result);
@@ -690,12 +690,12 @@ static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self)
             } else {
                 json->array_class = Qnil;
             }
-            tmp = ID2SYM(i_match);
+            tmp = ID2SYM(i_match_string);
             if (option_given_p(opts, tmp)) {
-                VALUE match = rb_hash_aref(opts, tmp);
-                json->match = RTEST(match) ? match : Qnil;
+                VALUE match_string = rb_hash_aref(opts, tmp);
+                json->match_string = RTEST(match_string) ? match_string : Qnil;
             } else {
-                json->match = Qnil;
+                json->match_string = Qnil;
             }
         }
     } else {
@@ -752,7 +752,7 @@ static void JSON_mark(JSON_Parser *json)
     rb_gc_mark_maybe(json->create_id);
     rb_gc_mark_maybe(json->object_class);
     rb_gc_mark_maybe(json->array_class);
-    rb_gc_mark_maybe(json->match);
+    rb_gc_mark_maybe(json->match_string);
 }
 
 static void JSON_free(JSON_Parser *json)
@@ -806,6 +806,7 @@ void Init_parser()
     i_object_class = rb_intern("object_class");
     i_array_class = rb_intern("array_class");
     i_match = rb_intern("match");
+    i_match_string = rb_intern("match_string");
     i_key_p = rb_intern("key?");
     i_deep_const_get = rb_intern("deep_const_get");
 #ifdef HAVE_RUBY_ENCODING_H
diff --git a/java/src/json/ext/Parser.java b/java/src/json/ext/Parser.java
index f6e9c4ea..c92600e9 100644
--- a/java/src/json/ext/Parser.java
+++ b/java/src/json/ext/Parser.java
@@ -53,7 +53,7 @@ public class Parser extends RubyObject {
     private boolean symbolizeNames;
     private RubyClass objectClass;
     private RubyClass arrayClass;
-    private RubyHash match;
+    private RubyHash match_string;
 
     private static final int DEFAULT_MAX_NESTING = 19;
 
@@ -155,7 +155,7 @@ public IRubyObject initialize(ThreadContext context, IRubyObject[] args) {
         this.createAdditions = opts.getBool("create_additions", true);
         this.objectClass     = opts.getClass("object_class", runtime.getHash());
         this.arrayClass      = opts.getClass("array_class", runtime.getArray());
-        this.match           = opts.getHash("match");
+        this.match_string    = opts.getHash("match_string");
 
         this.vSource = source;
         return this;
@@ -1383,11 +1383,11 @@ else if ( data[p] > _JSON_string_trans_keys[_mid+1] )
 // line 554 "Parser.rl"
 
             if (parser.createAdditions) {
-                RubyHash match = parser.match;
-                if (match != null) {
+                RubyHash match_string = parser.match_string;
+                if (match_string != null) {
                     final IRubyObject[] memoArray = { result, null };
                     try {
-                      match.visitAll(new RubyHash.Visitor() {
+                      match_string.visitAll(new RubyHash.Visitor() {
                           @Override
                           public void visit(IRubyObject pattern, IRubyObject klass) {
                               if (pattern.callMethod(context, "===", memoArray[0]).isTrue()) {
diff --git a/java/src/json/ext/Parser.rl b/java/src/json/ext/Parser.rl
index a79ead55..e576b979 100644
--- a/java/src/json/ext/Parser.rl
+++ b/java/src/json/ext/Parser.rl
@@ -51,7 +51,7 @@ public class Parser extends RubyObject {
     private boolean symbolizeNames;
     private RubyClass objectClass;
     private RubyClass arrayClass;
-    private RubyHash match;
+    private RubyHash match_string;
 
     private static final int DEFAULT_MAX_NESTING = 19;
 
@@ -153,7 +153,7 @@ public class Parser extends RubyObject {
         this.createAdditions = opts.getBool("create_additions", true);
         this.objectClass     = opts.getClass("object_class", runtime.getHash());
         this.arrayClass      = opts.getClass("array_class", runtime.getArray());
-        this.match           = opts.getHash("match");
+        this.match_string    = opts.getHash("match_string");
 
         this.vSource = source;
         return this;
@@ -553,11 +553,11 @@ public class Parser extends RubyObject {
             %% write exec;
 
             if (parser.createAdditions) {
-                RubyHash match = parser.match;
-                if (match != null) {
+                RubyHash match_string = parser.match_string;
+                if (match_string != null) {
                     final IRubyObject[] memoArray = { result, null };
                     try {
-                      match.visitAll(new RubyHash.Visitor() {
+                      match_string.visitAll(new RubyHash.Visitor() {
                           @Override
                           public void visit(IRubyObject pattern, IRubyObject klass) {
                               if (pattern.callMethod(context, "===", memoArray[0]).isTrue()) {
diff --git a/lib/json/pure/parser.rb b/lib/json/pure/parser.rb
index 6a0192c7..8043e675 100644
--- a/lib/json/pure/parser.rb
+++ b/lib/json/pure/parser.rb
@@ -119,7 +119,7 @@ def initialize(source, opts = {})
         @create_id        = opts[:create_id] || JSON.create_id
         @object_class     = opts[:object_class] || Hash
         @array_class      = opts[:array_class] || Array
-        @json_match       = opts[:match] # @match is an ivar in rbx's strscan
+        @match_string     = opts[:match_string]
       end
 
       alias source string
@@ -189,8 +189,8 @@ def parse_string
           if string.respond_to?(:force_encoding)
             string.force_encoding(::Encoding::UTF_8)
           end
-          if @create_additions and @json_match
-            for (regexp, klass) in @json_match
+          if @create_additions and @match_string
+            for (regexp, klass) in @match_string
               klass.json_creatable? or next
               string =~ regexp and return klass.json_create(string)
             end
diff --git a/tests/test_json_string_matching.rb b/tests/test_json_string_matching.rb
index 6bd74e32..df26a68a 100644
--- a/tests/test_json_string_matching.rb
+++ b/tests/test_json_string_matching.rb
@@ -28,13 +28,13 @@ def test_match_date
     t_json = [ t ].to_json
     assert_equal [ t ],
       JSON.parse(t_json,
-        :match => { /\A\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}[+-]\d{4}\Z/ => TestTime })
+        :match_string => { /\A\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}[+-]\d{4}\Z/ => TestTime })
     assert_equal [ t.strftime('%FT%T%z') ],
       JSON.parse(t_json,
-        :match => { /\A\d{3}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}[+-]\d{4}\Z/ => TestTime })
+        :match_string => { /\A\d{3}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}[+-]\d{4}\Z/ => TestTime })
     assert_equal [ t.strftime('%FT%T%z') ],
       JSON.parse(t_json,
-        :match            => { /\A\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}[+-]\d{4}\Z/ => TestTime },
+        :match_string => { /\A\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}[+-]\d{4}\Z/ => TestTime },
         :create_additions => false)
   end
 end