diff --git a/stepmania/src/Preference.h b/stepmania/src/Preference.h
index 6b8d8db5ac..ef01b53199 100644
--- a/stepmania/src/Preference.h
+++ b/stepmania/src/Preference.h
@@ -4,6 +4,7 @@
 #define PREFERENCE_H
 
 #include "EnumHelper.h"
+#include "RageUtil.h"
 class IniFile;
 
 struct lua_State;