diff --git a/connection.go b/connection.go
index 731a245b..50db2964 100644
--- a/connection.go
+++ b/connection.go
@@ -1659,6 +1659,7 @@ func (s *connection) handleTransportParameters(params *wire.TransportParameters)
 			ErrorCode:    qerr.TransportParameterError,
 			ErrorMessage: err.Error(),
 		})
+		return
 	}
 	s.peerParams = params
 	// On the client side we have to wait for handshake completion.