diff --git a/lib/OpenLayers/Handler/Drag.js b/lib/OpenLayers/Handler/Drag.js
index e2c111095d..085d4b584d 100644
--- a/lib/OpenLayers/Handler/Drag.js
+++ b/lib/OpenLayers/Handler/Drag.js
@@ -167,7 +167,7 @@ OpenLayers.Handler.Drag = OpenLayers.Class(OpenLayers.Handler, {
             OpenLayers.Event.stop(evt);
             
             if(!this.oldOnselectstart) {
-                this.oldOnselectstart = document.onselectstart;
+                this.oldOnselectstart = (document.onselectstart) ? document.onselectstart : function() { return true; };
                 document.onselectstart = function() {return false;};
             }