diff --git a/fluid/PaddleCV/image_classification/reader_cv2.py b/fluid/PaddleCV/image_classification/reader_cv2.py
index dd9462c5c7076d57f7e137153a93534152cbb64b..b61f1ecee46fd0640bf0c5e24aa37be900fd29b2 100644
--- a/fluid/PaddleCV/image_classification/reader_cv2.py
+++ b/fluid/PaddleCV/image_classification/reader_cv2.py
@@ -145,7 +145,7 @@ def _reader_creator(file_list,
         with open(file_list) as flist:
             full_lines = [line.strip() for line in flist]
             if shuffle:
-                np.random.shuffle(lines)
+                np.random.shuffle(full_lines)
             if mode == 'train' and os.getenv('PADDLE_TRAINING_ROLE'):
                 # distributed mode if the env var `PADDLE_TRAINING_ROLE` exits
                 trainer_id = int(os.getenv("PADDLE_TRAINER_ID", "0"))