diff --git a/designer/utslsynmemo.tsf b/designer/utslsynmemo.tsf
index 8d228fa..ca0742f 100644
--- a/designer/utslsynmemo.tsf
+++ b/designer/utslsynmemo.tsf
@@ -1462,7 +1462,7 @@ type TJsSynHighLighter = class(tcustomsynhighlighter)
         keywordcolor := 0xff0000;
         stringcolor := 0x968080;
         annotationcolor := 0x8D9600;
-        ExecuteCommand("strings",array(('"',"\\")));
+        ExecuteCommand("strings",array(('"',"\\"),("'","\\")));
         ExecuteCommand("keywords",jskeywords1());        
         ExecuteCommand("rowannotes",array("//"));
         ExecuteCommand("blockannotes",array(("/*","*/")));