diff --git a/server.py b/server.py
index 0669f882..99725d51 100644
--- a/server.py
+++ b/server.py
@@ -671,7 +671,7 @@ def setup_coinbase_commerce(app):
 
 
 def handle_coinbase_event(event) -> bool:
-    user_id = int(event["data"]["metadata"]["custom"])
+    user_id = int(event["data"]["metadata"]["user_id"])
     code = event["data"]["code"]
     user = User.get(user_id)
     if not user:
diff --git a/tests/test_server.py b/tests/test_server.py
index 46ceaac8..ed362342 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -27,7 +27,7 @@ def test_handle_coinbase_event_new_subscription(flask_client):
         commit=True,
     )
     handle_coinbase_event(
-        {"data": {"code": "AAAAAA", "metadata": {"custom": str(user.id)}}}
+        {"data": {"code": "AAAAAA", "metadata": {"user_id": str(user.id)}}}
     )
 
     assert user.is_paid()
@@ -55,7 +55,7 @@ def test_handle_coinbase_event_extend_subscription(flask_client):
     assert not user.is_premium()
 
     handle_coinbase_event(
-        {"data": {"code": "AAAAAA", "metadata": {"custom": str(user.id)}}}
+        {"data": {"code": "AAAAAA", "metadata": {"user_id": str(user.id)}}}
     )
 
     assert user.is_paid()