diff --git a/src/rpc/virnetmessage.c b/src/rpc/virnetmessage.c
index 4c60424..79a50f6 100644
--- a/src/rpc/virnetmessage.c
+++ b/src/rpc/virnetmessage.c
@@ -429,7 +429,7 @@ int virNetMessageEncodePayloadRaw(virNetMessagePtr msg,
     /* If the message buffer is too small for the payload increase it accordingly. */
     if ((msg->bufferLength - msg->bufferOffset) < len) {
         if ((msg->bufferOffset + len) >
-            VIR_NET_MESSAGE_MAX + VIR_NET_MESSAGE_LEN_MAX) {
+            (VIR_NET_MESSAGE_MAX + VIR_NET_MESSAGE_LEN_MAX)) {
             virReportError(VIR_ERR_RPC,
                            _("Stream data too long to send "
                              "(%zu bytes needed, %zu bytes available)"),