diff --git a/stepmania/src/GameManager.cpp b/stepmania/src/GameManager.cpp
index 7dfa634861..51f880e81c 100644
--- a/stepmania/src/GameManager.cpp
+++ b/stepmania/src/GameManager.cpp
@@ -15,7 +15,9 @@
 #include "GameConstantsAndTypes.h"
 #include "GameState.h"
 #include "GameInput.h"	// for GameButton constants
+#ifndef DIRECTINPUT_VERSION
 #define DIRECTINPUT_VERSION  0x0800
+#endif
 #include <dinput.h> 	// for DIK_* key codes
 
 GameManager*	GAMEMAN = NULL;	// global and accessable from anywhere in our program