diff --git a/src/app/datasources/stores/model.store.ts b/src/app/datasources/stores/model.store.ts
index ab2f3d2..60d2473 100644
--- a/src/app/datasources/stores/model.store.ts
+++ b/src/app/datasources/stores/model.store.ts
@@ -23,7 +23,7 @@
     private XosDebouncer: IXosDebouncer
   ) {
     this._collections = {};
-    this.efficientNext = this.XosDebouncer.debounce(this.next, 500, false);
+    this.efficientNext = this.XosDebouncer.debounce(this.next, 500, this, false);
   }
 
   public query(modelName: string, apiUrl: string): Observable<any> {