diff --git a/README.md b/README.md
index 223bb47..8057378 100644
--- a/README.md
+++ b/README.md
@@ -100,7 +100,7 @@ def map_to_pred(batch):
     batch["transcription"] = transcription
     return batch
 
-result = librispeech_eval.map(map_to_pred, batched=True, batch_size=16, remove_columns=["speech"])
+result = librispeech_eval.map(map_to_pred, batched=True, batch_size=1, remove_columns=["speech"])
 
 print("WER:", wer(result["text"], result["transcription"]))
 ```