diff --git a/src/os/macosx/font_osx.h b/src/os/macosx/font_osx.h
--- a/src/os/macosx/font_osx.h
+++ b/src/os/macosx/font_osx.h
@@ -36,5 +36,6 @@ public:
 };
 
 void LoadCoreTextFont(FontSize fs);
+void LoadCoreTextFont(FontSize fs, const std::string &file_name, uint size);
 
 #endif /* FONT_OSX_H */