diff --git a/message_ix_models/tests/util/test_context.py b/message_ix_models/tests/util/test_context.py
index 5921cb4634..2da18bb4ee 100644
--- a/message_ix_models/tests/util/test_context.py
+++ b/message_ix_models/tests/util/test_context.py
@@ -237,9 +237,9 @@ def test_handle_cli_args(self):
 
         ctx.delete()
 
-    def test_repr(self):
+    def test_repr(self) -> None:
         c = Context()
-        assert re.fullmatch("<Context object at [^ ]+ with 2 keys>", repr(c))
+        assert re.fullmatch("<Context object at [^ ]+ with 3 keys>", repr(c))
 
     def test_use_defaults(self, caplog):
         caplog.set_level(logging.INFO)