diff --git a/autoload/vundle.vim b/autoload/vundle.vim
index 1b2d59f..759a2ca 100644
--- a/autoload/vundle.vim
+++ b/autoload/vundle.vim
@@ -7,6 +7,9 @@
 com! -nargs=+         Bundle
    \ call vundle#config#bundle(<args>)
 
+com! -nargs=? -bang -complete=custom,vundle#scripts#complete BundleInstall
+   \ call vundle#installer#install('!' == '<bang>', <q-args>)
+
 com! -nargs=? -bang   BundleClean
    \ call vundle#installer#clean('!' == '<bang>')
 
diff --git a/autoload/vundle/scripts.vim b/autoload/vundle/scripts.vim
index 7a575ec..b6b6a5e 100644
--- a/autoload/vundle/scripts.vim
+++ b/autoload/vundle/scripts.vim
@@ -10,6 +10,10 @@ func! vundle#scripts#all(bang, ...)
   endif
 endf
 
+func! vundle#scripts#complete(a,c,d)
+  return join(s:load_scripts(0),"\n")
+endf
+
 func! vundle#scripts#install() abort
   let line = substitute(substitute(getline('.'), '\s*Bundle\s*','','g'), "'",'','g')
   call vundle#installer#install(0, line)