diff --git a/ftdetect/just.vim b/ftdetect/just.vim
index f63061a..09bae08 100644
--- a/ftdetect/just.vim
+++ b/ftdetect/just.vim
@@ -4,3 +4,4 @@
 " URL:		https://github.com/NoahTheDuke/vim-just.git
 " Last Change:	2021 Aug 26
 autocmd BufNewFile,BufRead \cjustfile,.justfile,*.just setfiletype just
+autocmd BufNewFile,BufRead *  if getline(1) =~# '\v^#!/%(\w|[/-])*\w/%(env%(\s+-S)?\s+)?just' | setfiletype just | endif