diff --git a/init.el b/init.el
index 0a81368..58bb6f3 100644
--- a/init.el
+++ b/init.el
@@ -730,7 +730,9 @@ COMMAND and COMINT are like `compile'."
 
 ;; (La)TeX
 (use-package tex-mode
-  :hook (latex-mode . eglot-ensure))
+  :hook (latex-mode . eglot-ensure)
+  :config
+  (add-to-list 'auto-mode-alist '("/\\.latexmkrc\\'" . perl-mode)))
 
 ;; blueprint
 (use-package blueprint-ts-mode