diff --git a/edit-plan.php b/edit-plan.php
index 3961cfe..1e5c730 100644
--- a/edit-plan.php
+++ b/edit-plan.php
@@ -111,6 +111,7 @@ $text = (object)[
     'loading' => get_string("loading", "core"),
     'studyplan_select' => get_string("studyplan_select", 'local_treestudyplan'),
     'studyplan_noneselected' => get_string("studyplan_noneselected", 'local_treestudyplan'),
+    'defaultaggregation' => get_config("local_treestudyplan", "aggregation_mode"),
 ];
 
 print <<<END
@@ -157,7 +158,7 @@ print <<<END
                     v-model="create.studyplan"
                     type="button"
                     variant="primary"
-                    default-aggregation="<?php print(get_config("local_treestudyplan", "aggregation_mode")); ?>"
+                    default-aggregation="{$text->defaultaggregation}"
                     :contextid='contextid'
                 ><i class='fa fa-plus'></i> {{ text.studyplan_add }}</t-studyplan-edit>
                 <b-button