diff --git a/Xi/xiproperty.c b/Xi/xiproperty.c
index 2691a89357..bf138c7710 100644
--- a/Xi/xiproperty.c
+++ b/Xi/xiproperty.c
@@ -989,7 +989,7 @@ ProcXGetDeviceProperty(ClientPtr client)
         swapl(&rep.bytesAfter);
         swapl(&rep.nItems);
     }
-    WriteToClient(client, sizeof(xGenericReply), &rep);
+    WriteToClient(client, sizeof(rep), &rep);
 
     if (length) {
         switch (rep.format) {