diff --git a/lib/ace/edit_session/folding.js b/lib/ace/edit_session/folding.js
index 871e47f4..3480bad2 100644
--- a/lib/ace/edit_session/folding.js
+++ b/lib/ace/edit_session/folding.js
@@ -66,7 +66,6 @@ function Folding() {
      *
      */
     this.getFoldsInRange = function(range) {
-        range = range.clone();
         var start = range.start;
         var end = range.end;
         var foldLines = this.$foldData;
@@ -104,6 +103,9 @@ function Folding() {
                 foundFolds.push(fold);
             }
         }
+        start.column -= 1;
+        end.column += 1;
+
         return foundFolds;
     };