diff --git a/src/FormHelper.php b/src/FormHelper.php
index d57329a..98039b3 100644
--- a/src/FormHelper.php
+++ b/src/FormHelper.php
@@ -178,6 +178,9 @@ private function formAlterEventSeries(
       foreach ($elements as $element) {
         $options[$element->value] = $element->name;
       }
+      if (!empty($eventData->pspElement) && !isset($options[$eventData->pspElement])) {
+        $options[$eventData->pspElement] = $this->t('%psp_element (deleted)', ['%psp_element' => $eventData->pspElement]);
+      }
 
       // PSP is a code for accounting. If an event has orders, we don't allow
       // this to be changed, as this would invalidate the accounting.