--- a/media/mtransport/test/transport_unittests.cpp
+++ b/media/mtransport/test/transport_unittests.cpp
@@ -471,16 +471,17 @@ class TransportTestPeer : public sigslot
   ~TransportTestPeer() {
     test_utils_->sts_target()->Dispatch(
       WrapRunnable(this, &TransportTestPeer::DestroyFlow),
       NS_DISPATCH_SYNC);
   }
 
 
   void DestroyFlow() {
+    disconnect_all();
     if (flow_) {
       loopback_->Disconnect();
       flow_ = nullptr;
     }
     ice_ctx_ = nullptr;
     streams_.clear();
   }