diff --git a/source/common/grpc/typed_async_client.h b/source/common/grpc/typed_async_client.h
index af9e8df9492a..f41a7cc7de73 100644
--- a/source/common/grpc/typed_async_client.h
+++ b/source/common/grpc/typed_async_client.h
@@ -36,6 +36,7 @@ template <typename Request> class AsyncStream /* : public RawAsyncStream */ {
   AsyncStream() = default;
   AsyncStream(RawAsyncStream* stream) : stream_(stream) {}
   AsyncStream(const AsyncStream& other) = default;
+  AsyncStream& operator=(const AsyncStream&) = default;
   void sendMessage(const Protobuf::Message& request, bool end_stream) {
     Internal::sendMessageUntyped(stream_, std::move(request), end_stream);
   }