diff --git a/gui/resources.hpp b/gui/resources.hpp
index ce06d96..4548c10 100644
--- a/gui/resources.hpp
+++ b/gui/resources.hpp
@@ -49,7 +49,7 @@
 
 public:
 	void* GetResource() { return this ? mFont : NULL; }
-	int GetHeight() { return gr_getMaxFontHeight(this ? mFont : NULL); }
+	int GetHeight() { return gr_ttf_getMaxFontHeight(this ? mFont : NULL); }
 	void Override(xml_node<>* node, ZipArchive* pZip);
 
 protected: