diff --git a/lib/ace/edit_session/bracket_match.js b/lib/ace/edit_session/bracket_match.js
index d936296f..cc634b5a 100644
--- a/lib/ace/edit_session/bracket_match.js
+++ b/lib/ace/edit_session/bracket_match.js
@@ -82,8 +82,8 @@ function BracketMatch() {
         // matches any token containing the same identifiers or a subset.  In
         // addition, if token.type includes "rparen", then also match "lparen".
         // So if type.token is "paren.rparen", then typeRe will match "lparen.paren".
-        var typeRe = new RegExp("(\\.?[" +
-            token.type.replace(".", "|").replace("rparen", "lparen|rparen") + "])+");
+        var typeRe = new RegExp("(\\.?" +
+            token.type.replace(".", "|").replace("rparen", "lparen|rparen") + ")+");
         
         // Start searching in token, just before the character at position.column
         var valueIndex = position.column - iterator.getCurrentTokenColumn() - 2;
@@ -135,8 +135,8 @@ function BracketMatch() {
         // matches any token containing the same identifiers or a subset.  In
         // addition, if token.type includes "lparen", then also match "rparen".
         // So if type.token is "lparen.paren", then typeRe will match "paren.rparen".
-        var typeRe = new RegExp("(\\.?[" +
-            token.type.replace(".", "|").replace("lparen", "lparen|rparen") + "])+");
+        var typeRe = new RegExp("(\\.?" +
+            token.type.replace(".", "|").replace("lparen", "lparen|rparen") + ")+");
 
         // Start searching in token, after the character at position.column
         var valueIndex = position.column - iterator.getCurrentTokenColumn();