diff --git a/questiontype.php b/questiontype.php
index 27973bc..28ffacc 100644
--- a/questiontype.php
+++ b/questiontype.php
@@ -316,8 +316,8 @@ public function get_num_correct_choices(stdClass $questiondata): int {
     }
 
     public function get_possible_responses($questiondata) {
-        $question = $this->make_question_instance($questiondata);
-        $this->initialise_question_instance($question, $questiondata);
+        $question = $this->make_question($questiondata);
+
         $subqs = [];
         $responses = [];
         foreach ($question->rows as $rowid => $row) {