diff --git a/include/dix-config.h.in b/include/dix-config.h.in
index 55cfe4710..30456cbae 100644
--- a/include/dix-config.h.in
+++ b/include/dix-config.h.in
@@ -472,6 +472,9 @@
 /* Don't let Xdefs.h define 'pointer' */
 #define _XTYPEDEF_POINTER       1
 
+/* Don't let XIproto define 'Pointer' */
+#define _XITYPEDEF_POINTER      1
+
 /* Ask fontsproto to make font path element names const */
 #define FONT_PATH_ELEMENT_NAME_CONST    1