diff --git a/funasr/frontends/default.py b/funasr/frontends/default.py
index 66d42f71c..364c8bbb9 100644
--- a/funasr/frontends/default.py
+++ b/funasr/frontends/default.py
@@ -48,6 +48,7 @@ class DefaultFrontend(nn.Module):
         # Deepcopy (In general, dict shouldn't be used as default arg)
         frontend_conf = copy.deepcopy(frontend_conf)
         self.hop_length = hop_length
+        self.fs = fs
 
         if apply_stft:
             self.stft = Stft(