diff --git a/config.el b/config.el
index c4706e4..ddc6c2f 100644
--- a/config.el
+++ b/config.el
@@ -61,3 +61,11 @@
 (map! :map poly-markdown+R-mode-map
       :n "RET" #'polymode-eval-chunk
       :desc "Evaluate code block")
+;; Set clangd as C/C++ LSP
+(setq lsp-clients-clangd-args '("-j=3"
+                                "--background-index"
+                                "--clang-tidy"
+                                "--completion-style=detailed"
+                                "--header-insertion=never"
+                                "--header-insertion-decorators=0"))
+(after! lsp-clangd (set-lsp-priority! 'clangd 2))