diff --git a/mod/lesson/pagetypes/endofbranch.php b/mod/lesson/pagetypes/endofbranch.php
index c715677f7d6..634da76eb26 100644
--- a/mod/lesson/pagetypes/endofbranch.php
+++ b/mod/lesson/pagetypes/endofbranch.php
@@ -58,7 +58,8 @@ class lesson_page_type_endofbranch extends lesson_page {
 
     public function redirect_to_first_answer($canmanage) {
         global $USER, $PAGE;
-        $answer = array_shift($this->get_answers());
+        $answers = $this->get_answers();
+        $answer = array_shift($answers);
         $jumpto = $answer->jumpto;
         if ($jumpto == LESSON_RANDOMBRANCH) {