diff --git a/completions/kldload b/completions/kldload
index d842b669c4d..4fe8456d7f3 100644
--- a/completions/kldload
+++ b/completions/kldload
@@ -16,13 +16,15 @@ _comp_cmd_kldload()
     moddirs=($(kldconfig -r 2>/dev/null))
     _comp_unlocal IFS
 
-    compopt -o filenames
-    for i in "${moddirs[@]}"; do
-        _comp_compgen -v modules -c "$i/$cur" -- -f &&
-            COMPREPLY+=("${modules[@]#$i/}")
-    done
-    ((${#COMPREPLY[@]})) &&
-        COMPREPLY=("${COMPREPLY[@]%.ko}")
+    if ((${#moddirs[@]})); then
+        compopt -o filenames
+        for i in "${moddirs[@]}"; do
+            _comp_compgen -v modules -c "$i/$cur" -- -f &&
+                COMPREPLY+=("${modules[@]#$i/}")
+        done
+        ((${#COMPREPLY[@]})) &&
+            COMPREPLY=("${COMPREPLY[@]%.ko}")
+    fi
 
     # also add dirs in current dir
     _comp_compgen -a filedir -d
diff --git a/completions/mplayer b/completions/mplayer
index dbab3cfcca3..2227ef62626 100644
--- a/completions/mplayer
+++ b/completions/mplayer
@@ -43,15 +43,16 @@ _comp_cmd_mplayer()
             return
             ;;
         -vobsub)
-            _comp_compgen_filedir '@(idx|ifo|sub)'
-            local IFS=$'\n'
-            COMPREPLY=($(for i in "${COMPREPLY[@]}"; do
-                if [[ -f $i && -r $i ]]; then
-                    printf '%s\n' "${i%.*}"
-                else
-                    printf '%s\n' "$i"
-                fi
-            done))
+            if _comp_compgen_filedir '@(idx|ifo|sub)'; then
+                local IFS=$'\n'
+                COMPREPLY=($(for i in "${COMPREPLY[@]}"; do
+                    if [[ -f $i && -r $i ]]; then
+                        printf '%s\n' "${i%.*}"
+                    else
+                        printf '%s\n' "$i"
+                    fi
+                done))
+            fi
             return
             ;;
         -subcp | -msgcharset)
@@ -84,15 +85,17 @@ _comp_cmd_mplayer()
                 dirs=(/usr/share/mplayer/skins /usr/local/share/mplayer/skins)
             fi
 
-            local -a subdirs
-            for i in ~/.mplayer/skins "${dirs[@]}"; do
-                if [[ -d $i && -r $i ]]; then
-                    _comp_compgen -v subdirs -c "$i/$cur" -- -d
-                    for j in "${subdirs[@]}"; do
-                        COMPREPLY[k++]=${j#"$i/"}
-                    done
-                fi
-            done
+            if ((${#dirs[@]})); then
+                local -a subdirs
+                for i in ~/.mplayer/skins "${dirs[@]}"; do
+                    if [[ -d $i && -r $i ]]; then
+                        _comp_compgen -v subdirs -c "$i/$cur" -- -d
+                        for j in "${subdirs[@]}"; do
+                            COMPREPLY[k++]=${j#"$i/"}
+                        done
+                    fi
+                done
+            fi
             return
             ;;
         -cdrom-device)
diff --git a/completions/mutt b/completions/mutt
index 6e95cc7a6ac..54cb930ebfb 100644
--- a/completions/mutt
+++ b/completions/mutt
@@ -103,18 +103,16 @@ _comp_cmd_mutt__query()
     local -a queryresults
 
     querycmd="$("$muttcmd" -Q query_command 2>/dev/null | command sed -e 's|^query_command=\"\(.*\)\"$|\1|' -e 's|%s|'"$cur"'|')"
-    if [[ ! $cur || ! $querycmd ]]; then
-        queryresults=()
-    else
+    if [[ $cur && $querycmd ]]; then
         local REPLY
         _comp_expand_tilde "$querycmd"
         querycmd=$REPLY
         # $querycmd is expected to be a command with arguments
         queryresults=($($querycmd |
             command sed -n '2,$s|^\([^[:space:]]\{1,\}\).*|\1|p'))
+        ((${#queryresults[@]})) &&
+            _comp_compgen -a -- -W '"${queryresults[@]}"'
     fi
-
-    _comp_compgen -a -- -W '"${queryresults[@]}"'
 }
 
 # @param $1 (cur) Current word to complete