diff --git a/egs/librispeech/ASR/incremental_transf/.model.py.swp b/egs/librispeech/ASR/incremental_transf/.model.py.swp
index bd115db11..5759f180d 100644
Binary files a/egs/librispeech/ASR/incremental_transf/.model.py.swp and b/egs/librispeech/ASR/incremental_transf/.model.py.swp differ
diff --git a/egs/librispeech/ASR/incremental_transf/model.py b/egs/librispeech/ASR/incremental_transf/model.py
index 36326a044..d986156a5 100644
--- a/egs/librispeech/ASR/incremental_transf/model.py
+++ b/egs/librispeech/ASR/incremental_transf/model.py
@@ -232,9 +232,9 @@ class Interformer(nn.Module):
 
         """
         super().__init__()
-        assert isinstance(encoder, EncoderInterface), type(encoder)
+        assert isinstance(pt_encoder, EncoderInterface), type(pt_encoder)
+        assert isinstance(inter_encoder, EncoderInterface), type(inter_encoder)
 
-        self.encoder = encoder
 
     def forward(
         self,