diff --git a/models/collaborative_area/collaborative_area_mongo_accessor.go b/models/collaborative_area/collaborative_area_mongo_accessor.go
index 666e644..a4c3a19 100644
--- a/models/collaborative_area/collaborative_area_mongo_accessor.go
+++ b/models/collaborative_area/collaborative_area_mongo_accessor.go
@@ -75,6 +75,9 @@ func (a *collaborativeAreaMongoAccessor) StoreOne(data utils.DBObject) (utils.DB
 	if code != 200 || dd == nil {
 		return nil, code, errors.New("could not retrieve the peer")
 	}
+	if data.(*CollaborativeArea).CollaborativeAreaRule != nil {
+		data.(*CollaborativeArea).CollaborativeAreaRule = &CollaborativeAreaRule{}
+	}
 	data.(*CollaborativeArea).CollaborativeAreaRule.Creator = dd[0].GetID()
 	d, code, err := utils.GenericStoreOne(data.(*CollaborativeArea).Trim(), a)
 	if code == 200 {