diff --git a/stepmania/src/LuaReference.h b/stepmania/src/LuaReference.h
index 6ec07ab0f2..c3c4e63d3f 100644
--- a/stepmania/src/LuaReference.h
+++ b/stepmania/src/LuaReference.h
@@ -4,6 +4,7 @@
 #define LUA_REFERENCE_H
 
 #include "RageUtil_AutoPtr.h"
+#include "LuaManager.h"
 
 struct lua_State;
 typedef lua_State Lua;