diff --git a/contrib/vim/ftdetect/bitbake.vim b/contrib/vim/ftdetect/bitbake.vim
index 179e4d9..b9529e6 100644
--- a/contrib/vim/ftdetect/bitbake.vim
+++ b/contrib/vim/ftdetect/bitbake.vim
@@ -10,8 +10,8 @@ if &compatible || version < 600
     finish
 endif
 
-" .bb and .bbclass
-au BufNewFile,BufRead *.b{b,bclass}	set filetype=bitbake
+" .bb, .bbappend and .bbclass
+au BufNewFile,BufRead *.{bb,bbappend,bbclass}	set filetype=bitbake
 
 " .inc
 au BufNewFile,BufRead *.inc 		set filetype=bitbake