diff --git a/src/InputFilter.cpp b/src/InputFilter.cpp
index a3d35d0ee2..943c49fba5 100644
--- a/src/InputFilter.cpp
+++ b/src/InputFilter.cpp
@@ -100,6 +100,7 @@ InputFilter::InputFilter()
 
 	m_MouseCoords.fX = 0;
 	m_MouseCoords.fY = 0;
+	m_MouseCoords.fZ = 0;
 
 	// Register with Lua.
 	{
@@ -415,6 +416,10 @@ void InputFilter::UpdateCursorLocation(float _fX, float _fY)
 	m_MouseCoords.fY = _fY;
 }
 
+void InputFilter::UpdateMouseWheel(float _fZ)
+{
+	m_MouseCoords.fZ = _fZ;
+}
 
 // lua start
 #include "LuaBinding.h"
@@ -439,11 +444,17 @@ public:
 		lua_pushnumber( L, fY );
 		return 1;
 	}
+	static int GetMouseWheel( T* p, lua_State *L ){
+		float fZ = p->GetMouseWheel();
+		lua_pushnumber( L, fZ );
+		return 1;
+	}
 
 	LunaInputFilter()
 	{
 		ADD_METHOD( GetMouseX );
 		ADD_METHOD( GetMouseY );
+		ADD_METHOD( GetMouseWheel );
 	}
 };
 
diff --git a/src/InputFilter.h b/src/InputFilter.h
index 35ee9c7cdb..a719702b66 100644
--- a/src/InputFilter.h
+++ b/src/InputFilter.h
@@ -37,6 +37,7 @@ struct MouseCoordinates
 {
 	float fX;
 	float fY;
+	float fZ;
 };
 
 class RageMutex;
@@ -70,8 +71,10 @@ public:
 
 	// cursor
 	void UpdateCursorLocation(float _fX, float _fY);
+	void UpdateMouseWheel(float _fZ);
 	float GetCursorX(){ return m_MouseCoords.fX; }
 	float GetCursorY(){ return m_MouseCoords.fY; }
+	float GetMouseWheel(){ return m_MouseCoords.fZ; }
 
 	// Lua
 	void PushSelf( lua_State *L );
@@ -84,7 +87,7 @@ private:
 	vector<InputEvent> queue;
 	RageMutex *queuemutex;
 	MouseCoordinates m_MouseCoords;
-	
+
 	InputFilter(const InputFilter& rhs);
 	InputFilter& operator=(const InputFilter& rhs);
 };