diff --git a/win32ss/reactx/dxg/dxg_int.h b/win32ss/reactx/dxg/dxg_int.h
index fa9c3170a86..625a3e92afa 100644
--- a/win32ss/reactx/dxg/dxg_int.h
+++ b/win32ss/reactx/dxg/dxg_int.h
@@ -7,7 +7,6 @@
 #define WINBASEAPI
 #define STARTF_USESIZE 2
 #define STARTF_USEPOSITION 4
-#define INTERNAL_CALL NTAPI
 #define NT_BUILD_ENVIRONMENT
 
 #define DDHMG_HANDLE_LIMIT 0x200000