diff --git a/application/Preordernotification/Preordernotification.php b/application/Preordernotification/Preordernotification.php
index 46dab5327..968ca6d78 100644
--- a/application/Preordernotification/Preordernotification.php
+++ b/application/Preordernotification/Preordernotification.php
@@ -120,7 +120,7 @@ class Preordernotification extends mfBaseModel {
       'FIRMA' => $preorder->company,
       'FIRMA_ODER_NAME' => ($preorder->company) ? $preorder->company : $fullname,
       'EMAIL' => $preorder->email,
-      'ANSCHLUSS_OAID' => $preorder->adb_wohneinheit->oaid,
+      'ANSCHLUSS_OAID' => ($preorder->adb_wohneinheit_id) ? $preorder->adb_wohneinheit->oaid : $preorder->adb_hausnummer->oaid,
       'ANSCHLUSS_STRASSE' => $preorder->adb_hausnummer->strasse->name,
       'ANSCHLUSS_HAUSNUMMER' => $preorder->adb_hausnummer->hausnummer,
       'ANSCHLUSS_PLZ' => $preorder->adb_hausnummer->plz->plz,