diff --git a/runtime/ftplugin/man.vim b/runtime/ftplugin/man.vim
index b8acd901a8..63bafa1925 100644
--- a/runtime/ftplugin/man.vim
+++ b/runtime/ftplugin/man.vim
@@ -1,7 +1,7 @@
 " Maintainer:          Anmol Sethi <anmol@aubble.com>
 " Previous Maintainer: SungHyun Nam <goweol@gmail.com>
 
-if exists('b:did_ftplugin')
+if exists('b:did_ftplugin') || &filetype !=# 'man'
   finish
 endif
 let b:did_ftplugin = 1