diff --git a/stepmania/src/RageDisplay.h b/stepmania/src/RageDisplay.h
index a8dfc99833..ad21f021e2 100644
--- a/stepmania/src/RageDisplay.h
+++ b/stepmania/src/RageDisplay.h
@@ -234,7 +234,7 @@ public:
 
 	// hacks for cell-shaded models
 	virtual void SetPolygonMode( PolygonMode pm ) {}
-	virtual void SetLineWidth( int iWidth ) {}
+	virtual void SetLineWidth( float fWidth ) {}
 
 	enum GraphicsFileFormat
 	{
diff --git a/stepmania/src/RageDisplay_OGL.cpp b/stepmania/src/RageDisplay_OGL.cpp
index 363f8a21f1..aead938ed9 100644
--- a/stepmania/src/RageDisplay_OGL.cpp
+++ b/stepmania/src/RageDisplay_OGL.cpp
@@ -1826,9 +1826,9 @@ void RageDisplay_OGL::SetPolygonMode( PolygonMode pm )
 	glPolygonMode( GL_FRONT_AND_BACK, m );
 }
 
-void RageDisplay_OGL::SetLineWidth( int iWidth )
+void RageDisplay_OGL::SetLineWidth( float fWidth )
 {
-	glLineWidth( iWidth );
+	glLineWidth( fWidth );
 }
 
 CString RageDisplay_OGL::GetTextureDiagnostics( unsigned id ) const
diff --git a/stepmania/src/RageDisplay_OGL.h b/stepmania/src/RageDisplay_OGL.h
index b734a7b127..b9815c1579 100644
--- a/stepmania/src/RageDisplay_OGL.h
+++ b/stepmania/src/RageDisplay_OGL.h
@@ -67,7 +67,7 @@ public:
 
 	// hacks for cell-shaded models
 	virtual void SetPolygonMode( PolygonMode pm );
-	virtual void SetLineWidth( int iWidth );
+	virtual void SetLineWidth( float fWidth );
 
 	CString GetTextureDiagnostics( unsigned id ) const;