diff --git a/nvim/lua/maps.lua b/nvim/lua/maps.lua
index a49e3dd..898066a 100644
--- a/nvim/lua/maps.lua
+++ b/nvim/lua/maps.lua
@@ -45,3 +45,6 @@ map("i", "<c-space>", "coc#refresh()", { silent = true, expr = true })
 -- Use cd to jump to next diagnostic
 map("n", "cd", "<Plug>(coc-diagnostic-next)", { silent = true })
 
+-- Use co to show outline
+map("n", "co", ":CocList outline<CR>", { silent = true })
+