diff --git a/application/ADBHausnummer/ADBHausnummer.php b/application/ADBHausnummer/ADBHausnummer.php
index 81b0a4c4a..df6c7e3c2 100644
--- a/application/ADBHausnummer/ADBHausnummer.php
+++ b/application/ADBHausnummer/ADBHausnummer.php
@@ -199,6 +199,10 @@ class ADBHausnummer extends mfBaseModel {
         $this->log->debug("[".$this->_ruid."] ".__METHOD__." (Hausnummer $this->id) Setting $code to $value");
 
         $sflag = ADBStatusflagModel::getFirst(["code" => $code]);
+        if(!$sflag) {
+            $this->log->debug("[".$this->_ruid."] ".__METHOD__." (Hausnummer $this->id) Not setting Statusflag $code because it doesn't exist");
+            return true;
+        }
         $sflag->hausnummer_id = $this->id;
 
         $sflag->value->value = $value ? 1 : 0;