diff --git a/src/tcpconnected.h b/src/tcpconnected.h
index 95f08b0..8c2cfec 100644
--- a/src/tcpconnected.h
+++ b/src/tcpconnected.h
@@ -139,7 +139,7 @@ public:
                 buffer.shrink(processed);
                 
                 // restore the buffer as member
-                _in.swap(buffer);
+                _in = std::move(buffer);
             }
         }