diff --git a/Libraries/CustomComponents/Navigator/Navigation/__tests__/NavigationEventEmitter-test.js b/Libraries/CustomComponents/Navigator/Navigation/__tests__/NavigationEventEmitter-test.js
index 518fe0724..2a8d7d82a 100644
--- a/Libraries/CustomComponents/Navigator/Navigation/__tests__/NavigationEventEmitter-test.js
+++ b/Libraries/CustomComponents/Navigator/Navigation/__tests__/NavigationEventEmitter-test.js
@@ -25,7 +25,9 @@
 'use strict';
 
 jest
+  .dontMock('EmitterSubscription')
   .dontMock('EventEmitter')
+  .dontMock('EventSubscriptionVendor')
   .dontMock('NavigationEvent')
   .dontMock('NavigationEventEmitter');