diff --git a/egs/audioset/AT/zipformer/encoder_interface.py b/egs/audioset/AT/zipformer/encoder_interface.py
new file mode 120000
index 000000000..653c5b09a
--- /dev/null
+++ b/egs/audioset/AT/zipformer/encoder_interface.py
@@ -0,0 +1 @@
+../../../librispeech/ASR/transducer_stateless/encoder_interface.py
\ No newline at end of file