diff --git a/vim/ftplugin/crontab.vim b/vim/ftplugin/crontab.vim
new file mode 100644
index 0000000000000000000000000000000000000000..5400ceb416398c970acc7044f1466f7ffbe25088
--- /dev/null
+++ b/vim/ftplugin/crontab.vim
@@ -0,0 +1 @@
+let b:ml_commentstring = '# %s'