diff --git a/devservices/commands/up.py b/devservices/commands/up.py
index 19655917..8b8f8e7c 100644
--- a/devservices/commands/up.py
+++ b/devservices/commands/up.py
@@ -162,8 +162,8 @@ def up(args: Namespace, existing_status: Status | None = None) -> None:
                 up(
                     Namespace(
                         service_name=local_runtime_dependency_name,
-                        mode=mode,
-                        exclude_local=True,
+                        mode="default",  # We intentionally don't use the mode from the parent command here
+                        exclude_local=True,  # TODO: This should be False (or maybe whatever the parent command is set to)
                     ),
                     status,
                 )
diff --git a/tests/commands/test_up.py b/tests/commands/test_up.py
index 4f611e10..3c003ee3 100644
--- a/tests/commands/test_up.py
+++ b/tests/commands/test_up.py
@@ -1495,7 +1495,10 @@ def test_up_dependency_set_to_local(
                         },
                     },
                 },
-                "modes": {"default": ["redis", "local-runtime-service"]},
+                "modes": {
+                    "default": ["redis", "local-runtime-service"],
+                    "other": ["redis", "local-runtime-service"],
+                },
             },
         }
         other_service_path = tmp_path / "code" / "other-service"
@@ -1507,7 +1510,7 @@ def test_up_dependency_set_to_local(
         state.update_service_runtime("local-runtime-service", ServiceRuntime.LOCAL)
 
         args = Namespace(
-            service_name=None, debug=False, mode="default", exclude_local=exclude_local
+            service_name=None, debug=False, mode="other", exclude_local=exclude_local
         )
 
         with (
@@ -1695,18 +1698,15 @@ def test_up_dependency_set_to_local(
         if exclude_local:
             mock_update_service_entry.assert_has_calls(
                 [
-                    mock.call(
-                        "other-service", "default", StateTables.STARTING_SERVICES
-                    ),
-                    mock.call("other-service", "default", StateTables.STARTED_SERVICES),
+                    mock.call("other-service", "other", StateTables.STARTING_SERVICES),
+                    mock.call("other-service", "other", StateTables.STARTED_SERVICES),
                 ]
             )
         else:
+            # Even though other-service is being brought up in mode "other", the local-runtime-service should be started in mode "default"
             mock_update_service_entry.assert_has_calls(
                 [
-                    mock.call(
-                        "other-service", "default", StateTables.STARTING_SERVICES
-                    ),
+                    mock.call("other-service", "other", StateTables.STARTING_SERVICES),
                     mock.call(
                         "local-runtime-service",
                         "default",
@@ -1715,7 +1715,7 @@ def test_up_dependency_set_to_local(
                     mock.call(
                         "local-runtime-service", "default", StateTables.STARTED_SERVICES
                     ),
-                    mock.call("other-service", "default", StateTables.STARTED_SERVICES),
+                    mock.call("other-service", "other", StateTables.STARTED_SERVICES),
                 ]
             )