diff --git a/etl/hubspot/hubspot_deal_differ.py b/etl/hubspot/hubspot_deal_differ.py
index de9680e65..1a3dfc409 100644
--- a/etl/hubspot/hubspot_deal_differ.py
+++ b/etl/hubspot/hubspot_deal_differ.py
@@ -259,7 +259,7 @@ class HubspotDealDiffer:
     def _is_abandoned(
         number_of_attempts: Optional[str], outcome: Optional[str]
     ) -> bool:
-        attempts = parse_hs_int(number_of_attempts)
+        attempts: Optional[int] = parse_hs_int(number_of_attempts)
         if (
             attempts is None
             or attempts < HubspotDealDiffer.ABANDONMENT_ATTEMPTS_THRESHOLD