diff --git a/backend/danswer/connectors/slack/connector.py b/backend/danswer/connectors/slack/connector.py
index 03a51ca3d..1e680f2e9 100644
--- a/backend/danswer/connectors/slack/connector.py
+++ b/backend/danswer/connectors/slack/connector.py
@@ -285,6 +285,9 @@ class SlackLoadConnector(LoadConnector):
         workspace: str,
         export_path_str: str,
         channels: list[str] | None = None,
+        # if specified, will only include channels that match at least one of these
+        # regexes OR are in `channels`
+        channel_regexes: list[str] | None = None,
         batch_size: int = INDEX_BATCH_SIZE,
     ) -> None:
         self.workspace = workspace