diff --git a/ixwebsocket/IXWebSocketTransport.cpp b/ixwebsocket/IXWebSocketTransport.cpp
index 1d381ecb..f5607a41 100644
--- a/ixwebsocket/IXWebSocketTransport.cpp
+++ b/ixwebsocket/IXWebSocketTransport.cpp
@@ -615,7 +615,7 @@ namespace ix
                     // the internal buffer which is slow and can let the internal OS
                     // receive buffer fill out.
                     //
-                    _chunks.emplace_back(frameData);
+                    _chunks.emplace_back(std::move(frameData));
 
                     if (ws.fin)
                     {