diff --git a/autoload/vundle/installer.vim b/autoload/vundle/installer.vim
index b92c9ea..30ea822 100644
--- a/autoload/vundle/installer.vim
+++ b/autoload/vundle/installer.vim
@@ -58,6 +58,7 @@ func! vundle#installer#install(bang, name) abort
   else
     throw 'whoops, unknown status:'.status
   endif
+  set nomodified
 endf
 
 func! vundle#installer#helptags(bundles) abort