diff --git a/funasr/auto/auto_model.py b/funasr/auto/auto_model.py
index 9bf1ad57e..2767e1863 100644
--- a/funasr/auto/auto_model.py
+++ b/funasr/auto/auto_model.py
@@ -555,8 +555,8 @@ def inference_with_vad(self, input, input_len=None, **cfg):
                         if k not in result:
                             result[k] = []
                         for t in restored_data[j][k]:
-                            t[0] += vadsegments[j][0]
-                            t[1] += vadsegments[j][0]
+                            t[0] = int(t[0]) + int(vadsegments[j][0])
+                            t[1] = int(t[1]) + int(vadsegments[j][0])
                         result[k].extend(restored_data[j][k])
                     elif k == "spk_embedding":
                         if k not in result: