diff --git a/types/backbone-relational/backbone-relational-tests.ts b/types/backbone-relational/backbone-relational-tests.ts
index c8b94c4029..8c8951f269 100644
--- a/types/backbone-relational/backbone-relational-tests.ts
+++ b/types/backbone-relational/backbone-relational-tests.ts
@@ -109,4 +109,9 @@ alert('paul.livesIn=' + paul.get('livesIn'));
 var theirHouse = new House({ id: 'house-2' });
 paul.set({ 'livesIn': theirHouse });
 
-alert('theirHouse.occupants=' + theirHouse.get('occupants').pluck('name'));
\ No newline at end of file
+alert('theirHouse.occupants=' + theirHouse.get('occupants').pluck('name'));
+
+BackboneRel.store.removeModelScope(window);
+BackboneRel.store.addModelScope(window);
+BackboneRel.store.unregister(Person);
+BackboneRel.store.reset();
diff --git a/types/backbone-relational/index.d.ts b/types/backbone-relational/index.d.ts
index 72494b48c7..23cf32ac1c 100644
--- a/types/backbone-relational/index.d.ts
+++ b/types/backbone-relational/index.d.ts
@@ -162,8 +162,11 @@ export class Store extends EventsMixin implements Events {
 
     update(model:Model):void;
 
-    unregister(model:Model, collection:Collection<BModel>, options:any):void;
+    // tslint:disable-next-line use-default-type-parameter
+    unregister(type: Model | Collection<Model> | typeof Model): void;
 
     reset():void;
 
 }
+
+export const store: Store;