diff --git a/nvim/.config/nvim/lua/lsp.lua b/nvim/.config/nvim/lua/lsp.lua
index 9b05f82..3dfb887 100644
--- a/nvim/.config/nvim/lua/lsp.lua
+++ b/nvim/.config/nvim/lua/lsp.lua
@@ -212,7 +212,7 @@ vim.api.nvim_create_autocmd("LspDetach", {
 
     for _, mappings in pairs(lsp_key_mappings) do
       local capability, mode, lhs, _ = unpack(mappings)
-      if client.server_capabilities[capability] then
+      if client.server_capabilities and client.server_capabilities[capability] then
         vim.api.nvim_buf_del_keymap(bufnr, mode, lhs)
       end
     end