diff --git a/stepmania/src/ThemeManager.cpp b/stepmania/src/ThemeManager.cpp
index da6670d91a..73ff90c205 100644
--- a/stepmania/src/ThemeManager.cpp
+++ b/stepmania/src/ThemeManager.cpp
@@ -174,7 +174,7 @@ void ThemeManager::GetLanguages( vector<RString>& AddTo )
 		GetLanguagesForTheme( g_vThemes[i].sThemeName, AddTo );
 
 	FOREACH( RString, AddTo, s )
-		s->MakeUpper();
+		s->MakeLower();
 
 	// remove dupes
 	sort( AddTo.begin(), AddTo.end() );