diff --git a/lua/lspconfig/lua.lua b/lua/lspconfig/lua.lua
index e0d6a1c..0c1b86e 100644
--- a/lua/lspconfig/lua.lua
+++ b/lua/lspconfig/lua.lua
@@ -76,3 +76,9 @@ require "lspconfig".sumneko_lua.setup {
         }
     }
 }
+
+-- replace the default lsp diagnostic letters with prettier symbols
+vim.fn.sign_define("LspDiagnosticsSignError", {text = "", numhl = "LspDiagnosticsDefaultError"})
+vim.fn.sign_define("LspDiagnosticsSignWarning", {text = "", numhl = "LspDiagnosticsDefaultWarning"})
+vim.fn.sign_define("LspDiagnosticsSignInformation", {text = "", numhl = "LspDiagnosticsDefaultInformation"})
+vim.fn.sign_define("LspDiagnosticsSignHint", {text = "", numhl = "LspDiagnosticsDefaultHint"})