diff --git a/stepmania/src/ComboGraph.cpp b/stepmania/src/ComboGraph.cpp
index 597acf4880..ed94486524 100644
--- a/stepmania/src/ComboGraph.cpp
+++ b/stepmania/src/ComboGraph.cpp
@@ -26,7 +26,7 @@ void ComboGraph::LoadFromNode( const XNode* pNode )
 	m_pMaxComboText = (BitmapText *) this->GetChild( "MaxComboText" );
 	if( m_pMaxComboText == NULL )
 		RageException::Throw( "%s: ComboGraph: must have a child named \"MaxComboText\"", ActorUtil::GetWhere(pNode).c_str() );
-	if( !m_pMaxComboText->IsType("BitmapText") )
+	if( dynamic_cast<BitmapText *>(m_pMaxComboText) == NULL )
 		RageException::Throw( "%s: ComboGraph: \"MaxComboText\" child is not a BitmapText", ActorUtil::GetWhere(pNode).c_str() );
 
 	m_pNormalCombo = this->GetChild( "NormalCombo" );