diff --git a/api/organisations/subscriptions/metadata.py b/api/organisations/subscriptions/metadata.py
index fdb3033ab55d..fcec281c8c47 100644
--- a/api/organisations/subscriptions/metadata.py
+++ b/api/organisations/subscriptions/metadata.py
@@ -9,7 +9,7 @@ class BaseSubscriptionMetadata:
     def __init__(
         self,
         seats: int = 0,
-        api_calls: None | int = None,
+        api_calls: int = 0,
         projects: None | int = None,
         chargebee_email: None | str = None,
         audit_log_visibility_days: int | None = 0,
diff --git a/api/tests/unit/organisations/subscriptions/test_unit_subscriptions_dataclasses.py b/api/tests/unit/organisations/subscriptions/test_unit_subscriptions_dataclasses.py
index d8a4a1e5b629..d4a650878e8f 100644
--- a/api/tests/unit/organisations/subscriptions/test_unit_subscriptions_dataclasses.py
+++ b/api/tests/unit/organisations/subscriptions/test_unit_subscriptions_dataclasses.py
@@ -47,6 +47,11 @@ def test_base_subscription_metadata_add_raises_error_if_not_matching_payment_sou
             SourceASubscriptionMetadata(seats=1, api_calls=50000, projects=1),
             SourceASubscriptionMetadata(seats=2, api_calls=100000, projects=None),
         ),
+        (
+            SourceASubscriptionMetadata(seats=1, api_calls=50000),
+            SourceASubscriptionMetadata(seats=1),
+            SourceASubscriptionMetadata(seats=2, api_calls=50000),
+        ),
     ),
 )
 def test_base_subscription_metadata_add(add_to, add, expected_result):