diff --git a/tools/infer/predict_cls.py b/tools/infer/predict_cls.py
index 00f0ffc1fe3387f139789490c4e6557eebb646d0..f9c4cc0f245acd2d5bd9a8576f6ff87eb9450854 100755
--- a/tools/infer/predict_cls.py
+++ b/tools/infer/predict_cls.py
@@ -82,7 +82,7 @@ class TextClassifier(object):
 
         cls_res = [['', 0.0]] * img_num
         batch_num = self.cls_batch_num
-        predict_time = 0
+        elapse = 0
         for beg_img_no in range(0, img_num, batch_num):
             end_img_no = min(img_num, beg_img_no + batch_num)
             norm_img_batch = []
@@ -107,14 +107,14 @@ class TextClassifier(object):
                 self.predictor.run([norm_img_batch])
             prob_out = self.output_tensors[0].copy_to_cpu()
             cls_res = self.postprocess_op(prob_out)
-            elapse = time.time() - starttime
+            elapse += time.time() - starttime
             for rno in range(len(cls_res)):
                 label, score = cls_res[rno]
                 cls_res[indices[beg_img_no + rno]] = [label, score]
                 if '180' in label and score > self.cls_thresh:
                     img_list[indices[beg_img_no + rno]] = cv2.rotate(
                         img_list[indices[beg_img_no + rno]], 1)
-        return img_list, cls_res, predict_time
+        return img_list, cls_res, elapse
 
 
 def main(args):
@@ -132,7 +132,7 @@ def main(args):
         valid_image_file_list.append(image_file)
         img_list.append(img)
     try:
-        img_list, cls_res, predict_time = text_classifier(img_list)
+        img_list, cls_res, elapse = text_classifier(img_list)
     except Exception as e:
         print(e)
         logger.info(
@@ -145,7 +145,7 @@ def main(args):
     for ino in range(len(img_list)):
         print("Predicts of %s:%s" % (valid_image_file_list[ino], cls_res[ino]))
     print("Total predict time for %d images, cost: %.3f" %
-          (len(img_list), predict_time))
+          (len(img_list), elapse))
 
 
 if __name__ == "__main__":
diff --git a/tools/infer/predict_rec.py b/tools/infer/predict_rec.py
index 54dbb03b570b605e5c05150b5fabef4d45d4337a..749a5fcdad3cdab126c83fde8ee7f1c5abc480bd 100755
--- a/tools/infer/predict_rec.py
+++ b/tools/infer/predict_rec.py
@@ -115,7 +115,7 @@ class TextRecognizer(object):
             rec_result = self.postprocess_op(preds)
             for rno in range(len(rec_result)):
                 rec_res[indices[beg_img_no + rno]] = rec_result[rno]
-            elapse = time.time() - starttime
+            elapse += time.time() - starttime
         return rec_res, elapse