diff --git a/doc/README.developer b/doc/README.developer
index b73b7cb3ed..7ce7b15175 100644
--- a/doc/README.developer
+++ b/doc/README.developer
@@ -1511,7 +1511,7 @@ struct header_field_info {
 	const char			*name;
 	const char			*abbrev;
 	enum ftenum			type;
-	int					display;
+	int				display;
 	const void			*strings;
 	guint32				bitmask;
 	const char			*blurb;