diff --git a/ftdetect/fish.vim b/ftdetect/fish.vim
index cbb7d0d..32b034a 100644
--- a/ftdetect/fish.vim
+++ b/ftdetect/fish.vim
@@ -1,3 +1,5 @@
+autocmd!
+
 autocmd BufRead,BufNewFile *.fish setfiletype fish
 
 " Detect fish scripts by the shebang line.