diff --git a/mypy/dmypy_server.py b/mypy/dmypy_server.py
index 10ff07451461..57adf20dcd16 100644
--- a/mypy/dmypy_server.py
+++ b/mypy/dmypy_server.py
@@ -403,7 +403,6 @@ def cmd_recheck(
                 sources, remove, update, explicit_export_types=export_types
             )
         else:
-            assert remove is None and update is None
             messages = self.fine_grained_increment_follow_imports(
                 sources, explicit_export_types=export_types
             )