diff --git a/Documentation/config.txt b/Documentation/config.txt
index 4914d768c7c..cc39f8639ad 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1445,7 +1445,8 @@ notes.rewriteRef::
 	You may also specify this configuration several times.
 +
 Does not have a default value; you must configure this variable to
-enable note rewriting.
+enable note rewriting.  Set it to `refs/notes/commits` to enable
+rewriting for the default commit notes.
 +
 This setting can be overridden with the `GIT_NOTES_REWRITE_REF`
 environment variable, which must be a colon separated list of refs or