diff --git a/src/glx.xml b/src/glx.xml
index 544b543..f23105c 100644
--- a/src/glx.xml
+++ b/src/glx.xml
@@ -371,8 +371,7 @@ The patch that fixed this server bug in X.org CVS is here:
 		<field type="CARD32" name="render_type" />
 		<field type="CARD32" name="share_list" />
 		<field type="BOOL" name="is_direct" />
-		<field type="CARD8" name="reserved1" />
-		<field type="CARD16" name="reserved2" />
+		<pad bytes="3" />
 	</request>
 
 	<request name="QueryContext" opcode="25">