--- a/gfx/vr/ipc/VRManagerParent.cpp
+++ b/gfx/vr/ipc/VRManagerParent.cpp
@@ -101,17 +101,16 @@ VRManagerParent::CreateSameProcess()
   loop->PostTask(FROM_HERE,
                  NewRunnableFunction(RegisterVRManagerInCompositorThread, vmp.get()));
   return vmp.get();
 }
 
 void
 VRManagerParent::DeferredDestroy()
 {
-  MOZ_ASSERT(mCompositorThreadHolder);
   mCompositorThreadHolder = nullptr;
   mSelfRef = nullptr;
 }
 
 void
 VRManagerParent::ActorDestroy(ActorDestroyReason why)
 {
   UnregisterFromManager();