diff --git a/dev/code-formatting/clang-format-series-of-commits/README.md b/dev/code-formatting/clang-format-series-of-commits/README.md
index f8cfa776c8665104be6b2c1183f18184e6e377a8..ed843698c1caa58b60c8ffac760da0cebdb28db4 100644
--- a/dev/code-formatting/clang-format-series-of-commits/README.md
+++ b/dev/code-formatting/clang-format-series-of-commits/README.md
@@ -38,3 +38,5 @@ To apply `clang-format` to each commit in the range `COMMIT..HEAD` rewriting the
 ```sh
 git filter-branch --tree-filter 'git-clang-format $GIT_COMMIT^' -- COMMIT..HEAD
 ```
+
+The command has to be applied multiple times until there are no changes.