diff --git a/lisp/vc/log-edit.el b/lisp/vc/log-edit.el
index 79dafe60cc..8b92e6aea1 100644
--- a/lisp/vc/log-edit.el
+++ b/lisp/vc/log-edit.el
@@ -504,6 +504,7 @@ log-edit-mode
   (cl-pushnew 'display-line-numbers-disable font-lock-extra-managed-props)
   (setq-local jit-lock-contextually t)  ;For the "first line is summary".
   (setq-local fill-paragraph-function #'log-edit-fill-entry)
+  (setq-local adaptive-fill-mode nil)
   (make-local-variable 'log-edit-comment-ring-index)
   (add-hook 'kill-buffer-hook 'log-edit-remember-comment nil t)
   (hack-dir-local-variables-non-file-buffer))