diff --git a/egs/librispeech/ASR/pruned_transducer_stateless6/model.py b/egs/librispeech/ASR/pruned_transducer_stateless6/model.py
index 157a4a880..66bb33e8d 100644
--- a/egs/librispeech/ASR/pruned_transducer_stateless6/model.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless6/model.py
@@ -134,7 +134,7 @@ class Transducer(nn.Module):
         if self.training and codebook_indexes is not None:
             assert hasattr(self, "codebook_loss_net")
             if codebook_indexes.shape[1] != middle_layer_output.shape[1]:
-                codebook_indexes = self.concat_sucessive_codebook_indexes(
+                codebook_indexes = self.concat_successive_codebook_indexes(
                     middle_layer_output, codebook_indexes
                 )
             codebook_loss = self.codebook_loss_net(
@@ -221,7 +221,7 @@ class Transducer(nn.Module):
         return (simple_loss, pruned_loss, codebook_loss)
 
     @staticmethod
-    def concat_sucessive_codebook_indexes(
+    def concat_successive_codebook_indexes(
         middle_layer_output, codebook_indexes
     ):
         # Output rate of hubert is 50 frames per second,