diff --git a/CRM/Case/Form/Case.php b/CRM/Case/Form/Case.php
index ec036cebc441de6ee2a4ff74a0fbd1406de5adc3..76800a435858fd1dfcadb0e4fd72819b39cb85e9 100644
--- a/CRM/Case/Form/Case.php
+++ b/CRM/Case/Form/Case.php
@@ -200,7 +200,7 @@ class CRM_Case_Form_Case extends CRM_Core_Form {
    */
   public function setDefaultValues() {
     if ($this->_action & CRM_Core_Action::DELETE || $this->_action & CRM_Core_Action::RENEW) {
-      return TRUE;
+      return [];
     }
     $className = "CRM_Case_Form_Activity_{$this->_activityTypeFile}";
     $defaults = $className::setDefaultValues($this);