diff --git a/ppocr/modeling/heads/rec_att_head.py b/ppocr/modeling/heads/rec_att_head.py
index a7cfe1282141d4646bf3c410d4b0f9a3e94d28fb..59e26c1e20c72c1993a00de96ba66ee5462b74cc 100644
--- a/ppocr/modeling/heads/rec_att_head.py
+++ b/ppocr/modeling/heads/rec_att_head.py
@@ -146,6 +146,9 @@ class AttentionLSTM(nn.Layer):
         else:
             targets = paddle.zeros(shape=[batch_size], dtype="int32")
             probs = None
+            char_onehots = None
+            outputs = None
+            alpha = None
 
             for i in range(num_steps):
                 char_onehots = self._char_to_onehot(