diff --git a/llvm/docs/Phabricator.rst b/llvm/docs/Phabricator.rst
--- a/llvm/docs/Phabricator.rst
+++ b/llvm/docs/Phabricator.rst
@@ -200,14 +200,27 @@
 commit message derived from information in the Phabricator review.
 
 Check you are happy with the commit message and amend it if necessary.
-For example, ensure the 'Author' property of the commit is set to the original author.
+For example, ensure that:
+
+* the ``Author`` property of the commit is set to the original author.
+* all phabricator tags except ``Differential Revision`` are stripped
+  from commit message.
+
 You can use a command to correct the author property if it is incorrect:
 
 ::
 
   git commit --amend --author="John Doe <jdoe@llvm.org>"
 
-Then, make sure the commit is up-to-date, and commit it. This can be done by running
+
+Otherwise you can clean commit message as:
+
+::
+
+  git commit --amend
+
+
+Then, make sure the commit is up-to-date, and push it. This can be done by running
 the following:
 
 ::
@@ -217,12 +230,10 @@
   ninja check-$whatever # Rerun the appropriate tests if needed.
   git push
 
-Or
-
-::
-
-  arc land D<Revision>
 
+Avoid using `arc land` as it keeps redundant tags in the commit message.
+Redundant tag examples are ``Summary``, ``Reviewers``, ``Subscribers``,
+``Tags``.
 
 Abandoning a change
 -------------------