diff --git a/egs/librispeech/ASR/zipformer_ctc/subsampling.py b/egs/librispeech/ASR/zipformer_ctc/subsampling.py
new file mode 120000
index 000000000..6fee09e58
--- /dev/null
+++ b/egs/librispeech/ASR/zipformer_ctc/subsampling.py
@@ -0,0 +1 @@
+../conformer_ctc/subsampling.py
\ No newline at end of file