diff --git a/classes/external/hub/collect_responses.php b/classes/external/hub/collect_responses.php
index 0a9408daa..90ff87689 100644
--- a/classes/external/hub/collect_responses.php
+++ b/classes/external/hub/collect_responses.php
@@ -90,6 +90,7 @@ public static function execute_returns() {
      * Submit responses for CatQuiz.
      *
      * @param string $jsondata The response data as json-encoded string
+     * @param string $sourceurl The source url
      * @return array The status and processed responses
      */
     public static function execute($jsondata, $sourceurl) {
diff --git a/classes/external/node/submit_responses.php b/classes/external/node/submit_responses.php
index edf9c6bc1..01bcf479b 100644
--- a/classes/external/node/submit_responses.php
+++ b/classes/external/node/submit_responses.php
@@ -73,7 +73,11 @@ public static function execute($scaleid) {
             // Fetch scale label from the database.
             if (!$label = $DB->get_field('local_catquiz_catscales', 'label', ['id' => $scaleid], MUST_EXIST)) {
                 return [
-                    'message' => get_string('submission_error', 'local_catquiz', get_string('missing_scale_label', 'local_catquiz')),
+                    'message' => get_string(
+                        'submission_error',
+                        'local_catquiz',
+                        get_string('missing_scale_label', 'local_catquiz')
+                    ),
                     'success' => false,
                 ];
             }