diff --git a/stepmania/src/ActorScroller.cpp b/stepmania/src/ActorScroller.cpp
index 930a36eae7..afe9e6fdd8 100644
--- a/stepmania/src/ActorScroller.cpp
+++ b/stepmania/src/ActorScroller.cpp
@@ -100,7 +100,7 @@ void ActorScroller::Load2(
 	m_fMaskHeight = fItemHeight;
 
 	m_exprTransform.SetFromExpression( 
-		ssprintf("function(self,offset,itemIndex,numItems) return %f*offset end",fItemHeight) 
+		ssprintf("function(self,offset,itemIndex,numItems) return self:y(%f*offset) end",fItemHeight) 
 		);
 
 	m_bLoop = bLoop;