diff --git a/nvim/.config/nvim/lua/lsp.lua b/nvim/.config/nvim/lua/lsp.lua
index 4bbd9be..c2bf5ad 100644
--- a/nvim/.config/nvim/lua/lsp.lua
+++ b/nvim/.config/nvim/lua/lsp.lua
@@ -7,7 +7,7 @@ local util       = require 'lspconfig/util'
 local cmp        = require 'cmp_nvim_lsp'
 
 -- https://github.com/neovim/nvim-lspconfig/wiki/User-contributed-tips
-function format_range_operator()
+function FormatRangeOperator()
   local old_func = vim.go.operatorfunc
   _G.op_func_formatting = function()
     local start = vim.api.nvim_buf_get_mark(0, '[')
@@ -122,7 +122,7 @@ local on_attach = function(client, bufnr)
   vim.api.nvim_buf_set_keymap(bufnr, 'n', 'pd'       , '<cmd>lua PeekDefinition()<CR>'              , opts)
 
   if client.resolved_capabilities.document_range_formatting then
-    vim.api.nvim_buf_set_keymap(bufnr, 'x', 'gq', '<cmd>lua format_range_operator()<CR>', opts)
+    vim.api.nvim_buf_set_keymap(bufnr, 'x', 'gq', '<cmd>lua FormatRangeOperator()<CR>', opts)
   end
   if client.resolved_capabilities.document_formatting then
     vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gq', '<cmd>lua vim.lsp.buf.formatting()<CR>', opts)
@@ -232,7 +232,6 @@ local rust_tool_opts = {
       show_parameter_hints      = true,
       parameter_hints_prefix    = "<- ",
       other_hints_prefix        = "=> ",
-      other_hints_prefix        = "",
       highlight                 = "Hint",
     },
     hover_actions = {
@@ -283,7 +282,7 @@ nvim_lsp.clangd.setup {
 
 require('rust-tools').setup(rust_tool_opts)
 
-library, runtime_path, lua_version = determine_setup_lua()
+local library, runtime_path, lua_version = determine_setup_lua()
 nvim_lsp.sumneko_lua.setup {
   cmd          = { "/usr/bin/lua-language-server" };
   on_attach    = on_attach,