diff --git a/lib/OpenLayers/Popup.js b/lib/OpenLayers/Popup.js
index 0a4d99f379..a5c82b8f15 100644
--- a/lib/OpenLayers/Popup.js
+++ b/lib/OpenLayers/Popup.js
@@ -513,7 +513,7 @@ OpenLayers.Popup = OpenLayers.Class({
             this.contentDiv.innerHTML + 
             "</div>";
  
-        var containerElement = (this.map) ? this.map.layerContainerDiv
+        var containerElement = (this.map) ? this.map.div
         								  : document.body;
         var realSize = OpenLayers.Util.getRenderedDimensions(
             preparedHTML, null,	{