diff --git a/ppcls/metric/metrics.py b/ppcls/metric/metrics.py
index 2d26ec1007b11e6f3b3fc9036da8039b8c46a95f..8ec438eced5feac5edd7f40982d88e4d99d0b177 100644
--- a/ppcls/metric/metrics.py
+++ b/ppcls/metric/metrics.py
@@ -100,7 +100,6 @@ class RetriMetric(nn.Layer):
             assert isinstance(topk, (int, list, tuple))
             if isinstance(topk, int):
                 topk = [topk]
-            self.topk = topk
             for k in topk:
                 metric_dict["recall{}".format(k)] = all_cmc[k - 1]
         if "mAP" in self.config.keys():