diff --git a/tests/config_forward.py b/tests/config_forward.py
index f988989..e361873 100644
--- a/tests/config_forward.py
+++ b/tests/config_forward.py
@@ -75,3 +75,5 @@ hash_only_tags = {'TODO:VT-ENRICHMENT'}
 
 # If an attribute is on any MISP server side `warning list`, skip the creation of the attribute
 skip_item_on_warninglist = True
+
+vt_key = None