diff --git a/.gitmodules b/.gitmodules
index 64a399f..4976619 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule ".vim/bundle/ruby"]
 	path = .vim/bundle/ruby
 	url = https://github.com/vim-ruby/vim-ruby.git
+[submodule ".vim/bundle/nerdtree"]
+	path = .vim/bundle/nerdtree
+	url = https://github.com/scrooloose/nerdtree.git
diff --git a/.vim/bundle/nerdtree b/.vim/bundle/nerdtree
new file mode 160000
index 0000000..b0bb781
--- /dev/null
+++ b/.vim/bundle/nerdtree
@@ -0,0 +1 @@
+Subproject commit b0bb781fc73ef40365e4c996a16f04368d64fc9d