diff --git a/stepmania/src/GameInput.h b/stepmania/src/GameInput.h
index a2fe1f938f..9789daac4b 100644
--- a/stepmania/src/GameInput.h
+++ b/stepmania/src/GameInput.h
@@ -58,6 +58,7 @@ RString GameButtonToLocalizedString( const InputScheme* pInputs, GameButton i );
 GameButton StringToGameButton( const InputScheme* pInputs, const RString& s );
 
 #define FOREACH_GameButton( gb ) FOREACH_ENUM( GameButton, gb )
+#define FOREACH_GameButton_Custom( gb ) for( GameButton gb=GAME_BUTTON_CUSTOM_01; gb<NUM_GameButton; enum_add(gb, +1) )
 
 #define GAME_BUTTON_NEXT		GAME_BUTTON_CUSTOM_01