Typo fix.

1 files changed, 2 insertions, 0 deletions

diff --git a/XI.h b/XI.h
index ec9bee2..3b11860 100644
--- a/XI.h
+++ b/XI.h
@@ -49,6 +49,8 @@ SOFTWARE.
 #ifndef _XI_H_
 #define _XI_H_
 
+#define sz_xGetExtensionVersionReq             8
+#define sz_xGetExtensionVersionReply           32
 #define sz_xListInputDevicesReq			4
 #define sz_xListInputDevicesReply		32
 #define sz_xOpenDeviceReq			8