diff --git a/uppsrc/Draw/Draw.h b/uppsrc/Draw/Draw.h
index eb0c010a5..092720a85 100644
--- a/uppsrc/Draw/Draw.h
+++ b/uppsrc/Draw/Draw.h
@@ -5,6 +5,10 @@
 
 #include <Core/Core.h>
 
+#ifdef flagCFONTS
+#define CUSTOM_FONTSYS
+#endif
+
 NAMESPACE_UPP
 
 class Drawing;