diff --git a/stepmania/src/RageDisplay_Null.h b/stepmania/src/RageDisplay_Null.h
index beffcf6e5c..026e6504c8 100644
--- a/stepmania/src/RageDisplay_Null.h
+++ b/stepmania/src/RageDisplay_Null.h
@@ -10,7 +10,6 @@ public:
 
 	virtual CString GetApiDescription() const { return "Null"; }
 	virtual void GetDisplayResolutions( DisplayResolutions &out ) const;
-	void ResolutionChanged() { }
 	const PixelFormatDesc *GetPixelFormatDesc(PixelFormat pf) const;
 
 	bool BeginFrame() { return true; }