diff --git a/doc/development/README.md b/doc/development/README.md
index 5df6ec5fd56..1566173992a 100644
--- a/doc/development/README.md
+++ b/doc/development/README.md
@@ -82,6 +82,7 @@ description: 'Learn how to contribute to GitLab.'
 - [Understanding EXPLAIN plans](understanding_explain_plans.md)
 - [explain.depesz.com](https://explain.depesz.com/) for visualising the output
   of `EXPLAIN`
+- [pgFormatter](http://sqlformat.darold.net/) a PostgreSQL SQL syntax beautifier
 
 ### Migrations