diff --git a/stepmania/src/NoteField.cpp b/stepmania/src/NoteField.cpp
index 50ce188c90..226a061528 100644
--- a/stepmania/src/NoteField.cpp
+++ b/stepmania/src/NoteField.cpp
@@ -68,7 +68,7 @@ void NoteField::CacheNoteSkin( CString skin )
 	m_NoteDisplays[ skin ] = nd;
 }
 
-void NoteField::Load( NoteData* pNoteData, PlayerNumber pn, int iFirstPixelToDraw, int iLastPixelToDraw, float fYReverseOffsetPixels )
+void NoteField::Load( const NoteData* pNoteData, PlayerNumber pn, int iFirstPixelToDraw, int iLastPixelToDraw, float fYReverseOffsetPixels )
 {
 	Unload();
 
diff --git a/stepmania/src/NoteField.h b/stepmania/src/NoteField.h
index 682eff39e5..7157246b76 100644
--- a/stepmania/src/NoteField.h
+++ b/stepmania/src/NoteField.h
@@ -33,7 +33,7 @@ public:
 	virtual void Update( float fDeltaTime );
 	virtual void DrawPrimitives();
 	
-	virtual void Load( NoteData* pNoteData, PlayerNumber pn, int iStartDrawingPixel, int iEndDrawingPixel, float fYReverseOffsetPixels );
+	virtual void Load( const NoteData* pNoteData, PlayerNumber pn, int iStartDrawingPixel, int iEndDrawingPixel, float fYReverseOffsetPixels );
 	virtual void Unload();
 	void RemoveTapNoteRow( int iIndex );
 
diff --git a/stepmania/src/NoteFieldPlus.cpp b/stepmania/src/NoteFieldPlus.cpp
index b639c1458a..8d9d5695dd 100644
--- a/stepmania/src/NoteFieldPlus.cpp
+++ b/stepmania/src/NoteFieldPlus.cpp
@@ -21,7 +21,7 @@ NoteFieldPlus::NoteFieldPlus()
 {
 }
 
-void NoteFieldPlus::Load( NoteData* pNoteData, PlayerNumber pn, int iFirstPixelToDraw, int iLastPixelToDraw, float fYReverseOffset )
+void NoteFieldPlus::Load( const NoteData* pNoteData, PlayerNumber pn, int iFirstPixelToDraw, int iLastPixelToDraw, float fYReverseOffset )
 {
 	NoteField::Load( pNoteData, pn, iFirstPixelToDraw, iLastPixelToDraw, fYReverseOffset );
 	
diff --git a/stepmania/src/NoteFieldPlus.h b/stepmania/src/NoteFieldPlus.h
index ccbe9c03f9..270c93cd6d 100644
--- a/stepmania/src/NoteFieldPlus.h
+++ b/stepmania/src/NoteFieldPlus.h
@@ -22,7 +22,7 @@ class NoteFieldPlus : public NoteField
 public:
 	NoteFieldPlus();
 
-	virtual void Load( NoteData* pNoteData, PlayerNumber pn, int iFirstPixelToDraw, int iLastPixelToDraw, float fYReverseOffset );
+	virtual void Load( const NoteData* pNoteData, PlayerNumber pn, int iFirstPixelToDraw, int iLastPixelToDraw, float fYReverseOffset );
 
 	virtual void Update( float fDelta );
 	virtual void DrawPrimitives();