diff --git a/vimrc b/vimrc
index 01c1037..3f3ab8f 100644
--- a/vimrc
+++ b/vimrc
@@ -135,6 +135,8 @@ if has("autocmd")
     autocmd FileType text setlocal textwidth=78
     autocmd FileType gitolite setlocal sw=2 ts=2 sts=2
     autocmd BufRead,BufNewFile *.icf set syntax=cpp
+    autocmd BufRead,BufNewFile *.cxl set syntax=cpp
+    autocmd BufRead,BufNewFile *.yc set syntax=yacc
     autocmd Syntax ruby setlocal sw=2 ts=2 sts=2 iskeyword+=@-@,?
     autocmd Syntax vim setlocal sw=2 ts=2 sts=2
     autocmd BufRead,BufNewFile *.di set filetype=d