diff --git a/stepmania/src/GraphDisplay.h b/stepmania/src/GraphDisplay.h
index 51ac084e88..1cb7555d4b 100644
--- a/stepmania/src/GraphDisplay.h
+++ b/stepmania/src/GraphDisplay.h
@@ -5,6 +5,7 @@
 #include "PlayerNumber.h"
 #include "RageTexture.h"
 
+struct StageStats;
 class GraphDisplay: public ActorFrame
 {
 public: