diff --git a/README.md b/README.md
index 51725d640b34a893cd45501030e61dc61599b818..a89feb55a91ac98d038074c2e7eb32c2b3449c72 100644
--- a/README.md
+++ b/README.md
@@ -58,4 +58,7 @@ Here is how this GitLab CI template chooses the Gitleaks rules to use:
 
 1. It first looks for a `.gitleaks.toml` file at the root of your project repository.
 2. If not found, it uses the `.toml` file specified with the `$GITLEAKS_RULES` variable.
-3. If not specified, [default Gitleaks rules] (https://github.com/zricethezav/gitleaks/blob/master/config/gitleaks.toml) are used.
+3. If not specified, [default Gitleaks rules](https://github.com/zricethezav/gitleaks/blob/master/config/gitleaks.toml) are used.
+
+
+Your Gitleaks rule file can extend the default rules by using `[extend]` + `useDefault = true` as explained in the [Gitleaks documentation](https://github.com/gitleaks/gitleaks/blob/master/README.md#configuration)