diff --git a/api/configs/remote_settings_sources/__init__.py b/api/configs/remote_settings_sources/__init__.py
index e31e25a10e..4f3878d13b 100644
--- a/api/configs/remote_settings_sources/__init__.py
+++ b/api/configs/remote_settings_sources/__init__.py
@@ -8,9 +8,9 @@ from .enums import RemoteSettingsSourceName
 
 
 class RemoteSettingsSourceConfig(ApolloSettingsSourceInfo):
-    REMOTE_SETTINGS_SOURCE_NAME: Optional[RemoteSettingsSourceName] = Field(
+    REMOTE_SETTINGS_SOURCE_NAME: RemoteSettingsSourceName | str = Field(
         description="name of remote config source",
-        default=None,
+        default="",
     )