diff --git a/README.md b/README.md
index 8ccc8e4..eecc98c 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,10 @@ To run command for example `:ComposerRun validate` run command validate for your
 ```
 This command exec the installation flow of composer's install. This process require `curl`
 
+```vim
+:ComposerInstall [--no-dev ..]
+```
+This command exec `composer install`
 
 ## Install
 ```vim
diff --git a/plugin/vim-composer.vim b/plugin/vim-composer.vim
index 29ccfb6..b41a151 100644
--- a/plugin/vim-composer.vim
+++ b/plugin/vim-composer.vim
@@ -22,6 +22,7 @@ if !exists("g:composer_cmd")
 endif
 
 command! -narg=* ComposerRun call s:ComposerRunFunc(<q-args>)
+command! -narg=* ComposerInstall call s:ComposerRunFunc("install ".<q-args>)
 command! ComposerGet call s:ComposerGetFunc()
 
 function! s:ComposerRunFunc(arg)