diff --git a/.dir-locals.el b/.dir-locals.el
index 069287742..f8673c51e 100644
--- a/.dir-locals.el
+++ b/.dir-locals.el
@@ -1,2 +1,3 @@
-((nil      (git-commit-major-mode . git-commit-elisp-text-mode))
+((nil      (git-commit-major-mode . git-commit-elisp-text-mode)
+           (fill-column . 80))
  (org-mode (buffer-read-only . t)))