diff --git a/lib/ace/mode/folding/cstyle.js b/lib/ace/mode/folding/cstyle.js
index d9821d1b..f5f6a0de 100644
--- a/lib/ace/mode/folding/cstyle.js
+++ b/lib/ace/mode/folding/cstyle.js
@@ -72,6 +72,7 @@ oop.inherits(FoldMode, BaseFoldMode);
         var isRegionStart = this.startRegionRe.test(line);
     
         if (line.length > 3 && line.substring(0, 2) === '/*' && line.substring(line.length - 2) === '*/') {
+            // No widget for single line block comment unless region or triple star
             if (!isRegionStart && line.substring(0, 4) !== '/***') 
                 return "";
         }