diff --git a/lua/keymaps.lua b/lua/keymaps.lua
index 7c7d6546..ecceeb54 100644
--- a/lua/keymaps.lua
+++ b/lua/keymaps.lua
@@ -7,6 +7,7 @@ vim.keymap.set('n', '<Esc>', '<cmd>nohlsearch<CR>')
 
 -- Diagnostic keymaps
 vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist, { desc = 'Open diagnostic [Q]uickfix list' })
+vim.keymap.set('n', '<leader>te', vim.diagnostic.open_float, { desc = '[T]oggle [E]rror messages' })
 
 -- Exit terminal mode in the builtin terminal with a shortcut that is a bit easier
 -- for people to discover. Otherwise, you normally need to press <C-\><C-n>, which