diff --git a/mmseg/utils/set_env.py b/mmseg/utils/set_env.py
index e68cc1532df6c1ebee21c23119b826752bdddd21..2f6efbe8a0117b0cde6771e93a1fb9b766620ed7 100644
--- a/mmseg/utils/set_env.py
+++ b/mmseg/utils/set_env.py
@@ -71,6 +71,7 @@ def register_all_modules(init_default_scope: bool = True) -> None:
     """  # noqa
     import mmseg.core  # noqa: F401,F403
     import mmseg.datasets  # noqa: F401,F403
+    import mmseg.datasets.pipelines  # noqa: F401,F403
     import mmseg.models  # noqa: F401,F403
 
     if init_default_scope: