diff --git a/lib/ace/mode/sqlserver_highlight_rules.js b/lib/ace/mode/sqlserver_highlight_rules.js
index 1f5a8697..335e702c 100644
--- a/lib/ace/mode/sqlserver_highlight_rules.js
+++ b/lib/ace/mode/sqlserver_highlight_rules.js
@@ -141,7 +141,7 @@ var SqlServerHighlightRules = function() {
             regex: "'",
             next: [{
                 token: "constant.language.escape",
-                regex: /\\'/
+                regex: /''/
             }, {
                 token: "string.end",
                 next: "start",