diff --git a/src/module_vmap/module/javascript/app/vmap/mapmanager/layerstree.js b/src/module_vmap/module/javascript/app/vmap/mapmanager/layerstree.js
index 022e48e4907211780ce980c29716871e9710190a..449d5d8ee093c7b562bcc0ffb60f16f0bcf8a237 100644
--- a/src/module_vmap/module/javascript/app/vmap/mapmanager/layerstree.js
+++ b/src/module_vmap/module/javascript/app/vmap/mapmanager/layerstree.js
@@ -377,8 +377,9 @@ nsVmap.nsMapManager.LayersTree.prototype.LayertreeController.prototype.reloadTre
     // Arbre pour la comparaison
     if(this.scope_["$root"]["compare_enabled"]){
         var oCompareTree = jQuery.extend(true, {}, oVmap.getMapManager().getCompareLayersTree());
-
         this.scope_['compareTree'] = oCompareTree;
+    } else {
+        this.scope_['compareTree'] = {};
     }
 
     oVmap.resizeLayerTools(false);
diff --git a/src/module_vmap/module/javascript/app/vmap/mapmanager/maplegend.js b/src/module_vmap/module/javascript/app/vmap/mapmanager/maplegend.js
index 91ff9d3080290a949736e83d9ec2dee001c7e5e4..c6759068d12cdca81139276cf329080ba8fe1adf 100644
--- a/src/module_vmap/module/javascript/app/vmap/mapmanager/maplegend.js
+++ b/src/module_vmap/module/javascript/app/vmap/mapmanager/maplegend.js
@@ -193,6 +193,8 @@ nsVmap.nsMapManager.MapLegend.prototype.maplegendController.prototype.loadLegend
     if(this.$scope_["$root"]["compare_enabled"]){
         this['oCompareUrls'] = this.getLegendUrls(oVmap.getMapCompare().getOLMap());
         this.downloadLegendImgs(this['oCompareUrls']);
+    } else {
+        this['oCompareUrls'] = {};
     }
 };