diff --git a/randr/rrdispatch.c b/randr/rrdispatch.c
index aed746bac..b0b451c2a 100644
--- a/randr/rrdispatch.c
+++ b/randr/rrdispatch.c
@@ -35,7 +35,7 @@ RRClientKnowsRates (ClientPtr	pClient)
 static int
 ProcRRQueryVersion (ClientPtr client)
 {
-    xRRQueryVersionReply rep;
+    xRRQueryVersionReply rep = {0};
     register int n;
     REQUEST(xRRQueryVersionReq);
     rrClientPriv(client);