diff --git a/pkgs/applications/version-management/git-and-tools/git/default.nix b/pkgs/applications/version-management/git-and-tools/git/default.nix
index 7824eaf69735..1454118da6ec 100644
--- a/pkgs/applications/version-management/git-and-tools/git/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
     sha256 = "0q5jnix65zn58dhd9xc3sjpamli0lh1bnsz1b9riwwicgwssrk7q";
   };
 
-  patches = [ ./docbook2texi.patch ];
+  patches = [ ./docbook2texi.patch ./fill-paragraph.patch ];
 
   buildInputs = [curl openssl zlib expat gettext cpio makeWrapper]
     ++ # documentation tools
diff --git a/pkgs/applications/version-management/git-and-tools/git/fill-paragraph.patch b/pkgs/applications/version-management/git-and-tools/git/fill-paragraph.patch
new file mode 100644
index 000000000000..59d6d6b3d332
--- /dev/null
+++ b/pkgs/applications/version-management/git-and-tools/git/fill-paragraph.patch
@@ -0,0 +1,11 @@
+diff --git a/contrib/emacs/git.el b/contrib/emacs/git.el
+index 3c37d0d..e314c44 100644
+--- a/contrib/emacs/git.el
++++ b/contrib/emacs/git.el
+@@ -1331,6 +1331,7 @@ Return the list of files that haven't been handled."
+ 					 (log-edit-diff-function . git-log-edit-diff)) buffer)
+ 	(log-edit 'git-do-commit nil 'git-log-edit-files buffer))
+       (setq font-lock-keywords (font-lock-compile-keywords git-log-edit-font-lock-keywords))
++      (setq paragraph-separate (concat (regexp-quote git-log-msg-separator) "$\\|Author: \\|Date: \\|Merge: \\|Signed-off-by: \\|\f\\|[ 	]*$"))
+       (setq buffer-file-coding-system coding-system)
+       (re-search-forward (regexp-quote (concat git-log-msg-separator "\n")) nil t))))