diff --git a/projects/common-map/src/fm-map/effects/map.effects.ts b/projects/common-map/src/fm-map/effects/map.effects.ts
index 3858d54..6f78d82 100644
--- a/projects/common-map/src/fm-map/effects/map.effects.ts
+++ b/projects/common-map/src/fm-map/effects/map.effects.ts
@@ -48,7 +48,7 @@ export const {
 export class MapEffects {
   private _geojsonFormat: GeoJSON;
   private _wktFormat: WKT;
-  private overrideSelectedItemLayer
+  private overrideSelectedItemLayer: boolean = false;
 
   private toPointFeature(updateEvent:commonActions.DeviceUpdateEvent): Feature {
     var f = this._wktFormat.readFeature(updateEvent.attributes["geometry"],{
@@ -394,6 +394,8 @@ export class MapEffects {
           if(data && data["fm-map-map"]) {
             let params = data["fm-map-map"];
             this.overrideSelectedItemLayer = params["overrideSelectedItemlayer"] ? params["overrideSelectedItemlayer"] : false;
+          } else {
+            this.overrideSelectedItemLayer = false;
           }
           return [];
         })