diff --git a/src/Nelmio/Alice/Instances/Collection.php b/src/Nelmio/Alice/Instances/Collection.php
index 3ef25e9db..295d6d4b8 100644
--- a/src/Nelmio/Alice/Instances/Collection.php
+++ b/src/Nelmio/Alice/Instances/Collection.php
@@ -145,7 +145,7 @@ protected function getKeysByMask($mask)
         if (!isset($this->keysByMask[$mask])) {
             $this->keysByMask[$mask] = array_values(
                 preg_grep(
-                    '{^'.str_replace('*', '.+', $mask).'$}',
+                    '{^'.str_replace('\\*', '.+', preg_quote($mask)).'$}',
                     array_keys($this->instances)
                 )
             );