Update runtime files
diff --git a/runtime/doc/ft_raku.txt b/runtime/doc/ft_raku.txt
index 8439de5..00b140e 100644
--- a/runtime/doc/ft_raku.txt
+++ b/runtime/doc/ft_raku.txt
@@ -1,4 +1,4 @@
-*vim-raku.txt*	The Raku programming language filetype
+*ft_raku.txt*	The Raku programming language filetype
 
                                                       *vim-raku*