diff --git a/include/flatbuffers/grpc.h b/include/flatbuffers/grpc.h
index 52a64408d..48ff3c82f 100644
--- a/include/flatbuffers/grpc.h
+++ b/include/flatbuffers/grpc.h
@@ -43,9 +43,7 @@ class SerializationTraits<T, typename std::enable_if<std::is_base_of<
 
   // There is no de-serialization step in FlatBuffers, so we just receive
   // the data from GRPC.
-  static grpc::Status Deserialize(grpc_byte_buffer *buffer,
-                                  T *msg,
-                                  int max_message_size) {
+  static grpc::Status Deserialize(grpc_byte_buffer *buffer, T *msg) {
     // TODO(wvo): make this more efficient / zero copy when possible.
     auto len = grpc_byte_buffer_length(buffer);
     msg->buf = reinterpret_cast<uint8_t *>(malloc(len));