diff --git a/randr/rrscreen.c b/randr/rrscreen.c
index 236794aff..6fd24e02d 100644
--- a/randr/rrscreen.c
+++ b/randr/rrscreen.c
@@ -854,6 +854,7 @@ ProcRRGetScreenInfo(ClientPtr client)
         swaps(&rep.sequenceNumber);
         swapl(&rep.length);
         swapl(&rep.timestamp);
+        swapl(&rep.configTimestamp);
         swaps(&rep.rotation);
         swaps(&rep.nSizes);
         swaps(&rep.sizeID);