vendor/assets/javascripts/codemirror/modes/scheme.js in codemirror-rails-3.12 vs vendor/assets/javascripts/codemirror/modes/scheme.js in codemirror-rails-3.13

@@ -221,10 +221,12 @@
         },
 
         indent: function (state) {
             if (state.indentStack == null) return state.indentation;
             return state.indentStack.indent;
-        }
+        },
+
+        lineComment: ";;"
     };
 });
 
 CodeMirror.defineMIME("text/x-scheme", "scheme");