diff --git a/lib/ace/selection.js b/lib/ace/selection.js
index 50a5bd0e..4f4dfb39 100644
--- a/lib/ace/selection.js
+++ b/lib/ace/selection.js
@@ -879,7 +879,7 @@ var Selection = function(session) {
 
     this.fromJSON = function(data) {
         if (data.start == undefined) {
-            if (this.toSingleRange) {
+            if (this.rangeList) {
                 this.toSingleRange(data[0]);
                 for (var i = data.length; i--; ) {
                     var r = Range.fromPoints(data[i].start, data[i].end);
@@ -891,7 +891,7 @@ var Selection = function(session) {
             } else
                 data = data[0];
         }
-        if (this.toSingleRange)
+        if (this.rangeList)
             this.toSingleRange(data);
         this.setSelectionRange(data, data.isBackwards);
     };