diff --git a/bigbluebutton-client/src/org/bigbluebutton/modules/present/ui/views/SlideView.mxml b/bigbluebutton-client/src/org/bigbluebutton/modules/present/ui/views/SlideView.mxml
index c6dbc55fdf88ba9845fe40224c2fb46c5b28fe46..43703949edab49783121e7861785073898238171 100755
--- a/bigbluebutton-client/src/org/bigbluebutton/modules/present/ui/views/SlideView.mxml
+++ b/bigbluebutton-client/src/org/bigbluebutton/modules/present/ui/views/SlideView.mxml
@@ -446,7 +446,8 @@ with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 			public function acceptOverlayCanvas(overlay:IBbbCanvas):void{
 				whiteboardCanvas = overlay;
 				var c:Canvas = overlay as Canvas;
-				this.addChild(c);
+                // add the canvas below the thumbnails
+				this.addChildAt(c, this.getChildIndex(thumbnailView));
 				c.x = slideLoader.x * SlideCalcUtil.MYSTERY_NUM;
 				c.y = slideLoader.y * SlideCalcUtil.MYSTERY_NUM;
 				c.width = slideLoader.width;