diff --git a/ftplugin/ats.vim b/ftplugin/ats.vim
index 91ea825..f4319cf 100644
--- a/ftplugin/ats.vim
+++ b/ftplugin/ats.vim
@@ -4,7 +4,11 @@ endif
 let b:ats_ftplugin = 1
 
 if !exists('g:ats_autoformat')
-    let g:ats_autoformat = 0
+    if executable('atsfmt') == 1
+        let g:ats_autoformat = 1
+    else
+        let g:ats_autoformat = 0
+    endif
 endif
 
 set smarttab