diff --git a/PyTorch/built-in/nlp/GPT-2_for_PyTorch/test/dataset_preprocess_gpt.sh b/PyTorch/built-in/nlp/GPT-2_for_PyTorch/test/dataset_preprocess_gpt.sh
index 7d6f7cf46a7dd5c0ec9c5f84ff355a5d427ff300..93e4ea92fdb77168cd8b8fbcf6c3f31502f73ed2 100644
--- a/PyTorch/built-in/nlp/GPT-2_for_PyTorch/test/dataset_preprocess_gpt.sh
+++ b/PyTorch/built-in/nlp/GPT-2_for_PyTorch/test/dataset_preprocess_gpt.sh
@@ -34,7 +34,7 @@ VOCAB=./gpt2-vocab.json
 MERGE=./gpt2-merges.txt
 mv $VOCAB ./data/
 mv $MERGE ./data/
-python3tools/preprocess_data.py \
+python3 tools/preprocess_data.py \
        --input $OUTDIR/wiki_all.json \
        --output-prefix $OUTDIR/my-gpt \
        --vocab $VOCAB \