diff --git a/.gitmodules b/.gitmodules
index 072004e..e8438c2 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "bundle/vim-ps1"]
 	path = bundle/vim-ps1
 	url = https://github.com/PProvost/vim-ps1.git
+[submodule "bundle/vimoutliner"]
+	path = bundle/vimoutliner
+	url = https://github.com/vimoutliner/vimoutliner.git
diff --git a/bundle/vimoutliner b/bundle/vimoutliner
new file mode 160000
index 0000000..cb41cfd
--- /dev/null
+++ b/bundle/vimoutliner
@@ -0,0 +1 @@
+Subproject commit cb41cfd6d636e1243e7e9c46b35fc5cb50588069