diff --git a/libs/maps.js b/libs/maps.js
index 8abd7e0c..2e8c4c8f 100644
--- a/libs/maps.js
+++ b/libs/maps.js
@@ -785,7 +785,7 @@ maps.prototype._drawBgFgMap = function (floorId, ctx, name, onMap) {
 
     var arr = this._getBgFgMapArray(name, floorId, true);
     var eventArr = null;
-    if (main.mode == 'editor' && name == 'fg') {
+    if (main.mode == 'editor' && name == 'fg' && onMap) {
         eventArr = this.getMapArray(floorId);
     }