diff --git a/src/knot/updates/acl.h b/src/knot/updates/acl.h
index ea122f178aadaf0874fafefc30a2ff48afe7dbbd..bd353592cfa1b3260c2deecc9b7498556b6c994b 100644
--- a/src/knot/updates/acl.h
+++ b/src/knot/updates/acl.h
@@ -72,9 +72,9 @@ void acl_delete(acl_t **acl);
  * \brief Insert new ACL match.
  *
  * \param acl Pointer to ACL instance.
- * \param addr Netblock address.
- * \param address Netblock prefix.
- * \param val Value to be stored for given address (or NULL).
+ * \param addr Address.
+ * \param prefix Netblock prefix.
+ * \param key TSIG key.
  *
  * \retval KNOT_EOK if successful.
  * \retval KNOT_EINVAL