diff --git a/include/ntapi/nt_time.h b/include/ntapi/nt_time.h
index b8ddd41..29f8d42 100644
--- a/include/ntapi/nt_time.h
+++ b/include/ntapi/nt_time.h
@@ -36,7 +36,7 @@ typedef int32_t __stdcall ntapi_zw_query_timer_resolution(
 
 
 typedef int32_t __stdcall ntapi_zw_delay_execution(
-	__in	int32_t *		alertable,
+	__in	int32_t			alertable,
 	__in	nt_large_integer *	interval);
 
 typedef int32_t __stdcall ntapi_zw_yield_execution(void);