diff --git a/integrationtests/model.yml b/integrationtests/model.yml
index 0a4ad381bfc119dd65d2c192f8de823deda525ae..73609a7a2fcde5c2802bac64736726c9d663d726 100644
--- a/integrationtests/model.yml
+++ b/integrationtests/model.yml
@@ -1,5 +1,5 @@
 Experiment:
-  obligatory_properties:
+  recommended_properties:
     date:
       datatype: DATETIME 
       description: 'date of the experiment'