diff --git a/stepmania/src/Transition.cpp b/stepmania/src/Transition.cpp
index e75465b6ae..699131fa3e 100644
--- a/stepmania/src/Transition.cpp
+++ b/stepmania/src/Transition.cpp
@@ -106,7 +106,7 @@ void Transition::StartTransitioning( ScreenMessage send_when_done )
 	m_fSecsIntoTransition = 0.0;
 }
 
-float Transition::GetLengthSeconds()
+float Transition::GetLengthSeconds() const
 {
 	return m_BGAnimation.GetLengthSeconds();
 }
diff --git a/stepmania/src/Transition.h b/stepmania/src/Transition.h
index 3f2c347ccd..a1f670f636 100644
--- a/stepmania/src/Transition.h
+++ b/stepmania/src/Transition.h
@@ -29,9 +29,9 @@ public:
 
 	virtual void StartTransitioning( ScreenMessage send_when_done = SM_None );
 
-	bool IsTransitioning()	{ return m_State == transitioning; };
-	bool IsFinished()	{ return m_State == finished; };
-	float GetLengthSeconds();
+	bool IsTransitioning() const	{ return m_State == transitioning; };
+	bool IsFinished() const	{ return m_State == finished; };
+	float GetLengthSeconds() const;
 
 protected: