diff --git a/application/RimoWorkorder/RimoWorkorder.php b/application/RimoWorkorder/RimoWorkorder.php
index 7f18b4713..31dcb8994 100644
--- a/application/RimoWorkorder/RimoWorkorder.php
+++ b/application/RimoWorkorder/RimoWorkorder.php
@@ -15,6 +15,9 @@ class RimoWorkorder extends mfBaseModel {
     }
 
     public function afterSave() {
+        $this->adb_wohneinheit = null;
+        $this->termination = null;
+
         // prevent potential infinite loop
         $nesting_level = mfValuecache::singleton()->get("rimoworkorder-save-nesting-level-".$this->id);
         if(!$nesting_level) {