diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b4dbaced61..3587203fd0 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -66,3 +66,12 @@ See the [RELEASING.md](RELEASING.md) for instructions.
 Please note that libraries need bounds on the version of their dependencies to avoid bitrot and be effectively reusable.
 
 [CHaP]: https://github.com/input-output-hk/cardano-haskell-packages
+
+## Improving `git blame`
+
+You can have `git blame` ignore the reformatting done when [introducting fourmolu](https://github.com/IntersectMBO/cardano-cli/pull/835/commits/9d1fd093071278be77428dba189d958d5b7a7aeb) by setting this in your `.git/config` file:
+
+```toml
+[blame]
+        ignoreRevsFile = .git-blame-ignore-revs
+```