diff --git a/lib/OpenLayers/Marker/Box.js b/lib/OpenLayers/Marker/Box.js
index d772c31936..e5766c0d83 100644
--- a/lib/OpenLayers/Marker/Box.js
+++ b/lib/OpenLayers/Marker/Box.js
@@ -24,6 +24,7 @@ OpenLayers.Marker.Box.prototype = Object.extend( new OpenLayers.Marker(), {
         if (arguments.length > 0) {
             this.bounds = bounds;
             this.div    = OpenLayers.Util.createDiv();
+            this.div.style.overflow = 'hidden';
             this.events = new OpenLayers.Events(this, this.div, null);
             this.setBorder(borderColor, borderWidth);
         }