diff --git a/stepmania/src/StepMania.cpp b/stepmania/src/StepMania.cpp
index 512339e6ca..c9609b44ff 100644
--- a/stepmania/src/StepMania.cpp
+++ b/stepmania/src/StepMania.cpp
@@ -148,7 +148,7 @@ static void StoreActualGraphicOptions()
 	Dialog::SetWindowed( params.windowed );
 }
 
-RageDisplay *CreateDisplay();
+static RageDisplay *CreateDisplay();
 
 static void StartDisplay()
 {