diff --git a/HISTORY.md b/HISTORY.md
index 8a71f54c..86a7249c 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -23,6 +23,7 @@ http://visjs.org
 
 - Fixed not property initializing with a DataView for groups.
 - Merged add custom timebar functionality, thanks @aytech!
+- Fixed #664: end of item not restored when canceling a move event.
 
 
 ## 2015-02-11, version 3.10.0
diff --git a/lib/timeline/component/ItemSet.js b/lib/timeline/component/ItemSet.js
index dd6eb87a..571e87ea 100644
--- a/lib/timeline/component/ItemSet.js
+++ b/lib/timeline/component/ItemSet.js
@@ -1229,8 +1229,15 @@ ItemSet.prototype._onDrag = function (event) {
  */
 ItemSet.prototype._updateItemProps = function(item, props) {
   // TODO: copy all properties from props to item? (also new ones)
-  if ('start' in props) item.data.start = props.start;
-  if ('end' in props)   item.data.end   = props.end;
+  if ('start' in props) {
+    item.data.start = props.start;
+  }
+  if ('end' in props) {
+    item.data.end = props.end;
+  }
+  else if ('duration' in props) {
+    item.data.end = new Date(props.start.valueOf() + props.duration);
+  }
   if ('group' in props && item.data.group != props.group) {
     this._moveToGroup(item, props.group)
   }