diff --git a/README.org b/README.org
index 75450d33..a04c3e4f 100644
--- a/README.org
+++ b/README.org
@@ -3557,7 +3557,7 @@ I'd like to start learning and using rust if I can.
   ;; comment to disable rustfmt on save
   (setq rustic-format-on-save t
         rustic-lsp-client 'eglot
-        rustic-clippy-arguments "-- -W clippy::pedantic -W clippy::nursery -W clippy::unwrap_used"
+        rustic-clippy-arguments "-- -W clippy::pedantic -W clippy::perf -W clippy::nursery -W clippy::unwrap_used"
         rustic-rustfmt-args '("--edition" "2021"))
   (advice-add 'eglot-completion-at-point :around #'cape-wrap-buster)
   (add-to-list 'compilation-error-regexp-alist rustic-compilation-error)
diff --git a/init.el b/init.el
index 0d63f7a9..a4ec6739 100644
--- a/init.el
+++ b/init.el
@@ -2599,7 +2599,7 @@ targets."
   ;; comment to disable rustfmt on save
   (setq rustic-format-on-save t
         rustic-lsp-client 'eglot
-        rustic-clippy-arguments "-- -W clippy::pedantic -W clippy::nursery -W clippy::unwrap_used"
+        rustic-clippy-arguments "-- -W clippy::pedantic -W clippy::perf -W clippy::nursery -W clippy::unwrap_used"
         rustic-rustfmt-args '("--edition" "2021"))
   (advice-add 'eglot-completion-at-point :around #'cape-wrap-buster)
   (add-to-list 'compilation-error-regexp-alist rustic-compilation-error)