diff --git a/lua/core/mappings.lua b/lua/core/mappings.lua
index 408f7a9..1731fba 100644
--- a/lua/core/mappings.lua
+++ b/lua/core/mappings.lua
@@ -186,7 +186,7 @@ M.lspconfig = {
 
     ["<leader>f"] = {
       function()
-        vim.diagnostic.open_float()
+        vim.diagnostic.open_float { border = "rounded" }
       end,
       "floating diagnostic",
     },