diff --git a/src/fontcache.cpp b/src/fontcache.cpp
--- a/src/fontcache.cpp
+++ b/src/fontcache.cpp
@@ -39,10 +39,8 @@ static int _ascender[FS_END];
 
 FreeTypeSettings _freetype;
 
-enum {
-	FACE_COLOUR = 1,
-	SHADOW_COLOUR = 2,
-};
+static const byte FACE_COLOUR   = 1;
+static const byte SHADOW_COLOUR = 2;
 
 /** Get the font loaded into a Freetype face by using a font-name.
  * If no appropiate font is found, the function returns an error */