diff --git a/emacs.el b/emacs.el
index fa558a8..4a7f876 100644
--- a/emacs.el
+++ b/emacs.el
@@ -38,6 +38,7 @@
 (straight-use-package 'cmake-mode)
 (straight-use-package 'powershell)
 (straight-use-package 'glsl-mode)
+(straight-use-package 'protobuf-mode)
 
 ;; (straight-use-package '(promela-mode
 ;;                         :type git