diff --git a/after/plugin/undotree.lua b/after/plugin/undotree.lua
new file mode 100644
index 0000000..2fd2cf6
--- /dev/null
+++ b/after/plugin/undotree.lua
@@ -0,0 +1,3 @@
+local nmap = require "opdavies.keymap".nmap
+
+nmap { "<leader>u", vim.cmd.UndotreeToggle }