diff --git a/src/module_vmap/module/javascript/app/vmap/map/mapcompare.js b/src/module_vmap/module/javascript/app/vmap/map/mapcompare.js
index 4fdf3a756d3a58291345c3b5b19ca7a9428f311a..0b43b71c4385a064a04a2ccd5c84934bac2e9af7 100644
--- a/src/module_vmap/module/javascript/app/vmap/map/mapcompare.js
+++ b/src/module_vmap/module/javascript/app/vmap/map/mapcompare.js
@@ -577,7 +577,7 @@ nsVmap.MapCompare.prototype.mapCompareController.prototype.synchronizeMap = func
     var this_ = this;
 
     // Synchro Échelle
-    oVmap.getMap().getOLMap().getTargetElement().addEventListener('mouseenter', function(){
+    this_.map.getTargetElement().addEventListener('mouseleave', function(){
         oVmap.getMap().getOLMap().on("moveend", this_.updateCompareScaleMap, this_);
         this_.map.un("moveend", this_.updateScaleMap, this_);
     });