diff --git a/egs/librispeech/ASR/incremental_transf/.conformer.py.swp b/egs/librispeech/ASR/incremental_transf/.conformer.py.swp
index 6cac712ab..db2caf2b9 100644
Binary files a/egs/librispeech/ASR/incremental_transf/.conformer.py.swp and b/egs/librispeech/ASR/incremental_transf/.conformer.py.swp differ
diff --git a/egs/librispeech/ASR/incremental_transf/conformer.py b/egs/librispeech/ASR/incremental_transf/conformer.py
index c341877aa..b6ff0a156 100644
--- a/egs/librispeech/ASR/incremental_transf/conformer.py
+++ b/egs/librispeech/ASR/incremental_transf/conformer.py
@@ -504,7 +504,7 @@ class Tempformer(EncoderInterface):
         self._init_state: List[torch.Tensor] = [torch.empty(0)]
 
     def forward(
-        self, x: torch.Tensor
+        self, x
     ):
         """
         Args: