diff --git a/pkg/controller/init.go b/pkg/controller/init.go
index 9de515a6a9cf..71bc4f7d6d10 100644
--- a/pkg/controller/init.go
+++ b/pkg/controller/init.go
@@ -625,15 +625,15 @@ func (c *Controller) syncSubnetCR() error {
 		klog.Error(err)
 		return err
 	}
-	for _, orisubnet := range subnets {
-		subnet := orisubnet.DeepCopy()
+	for _, cachedSubnet := range subnets {
+		subnet := cachedSubnet.DeepCopy()
 		if util.CheckProtocol(subnet.Spec.CIDRBlock) == kubeovnv1.ProtocolDual {
 			subnet, err = c.calcDualSubnetStatusIP(subnet)
 		} else {
 			subnet, err = c.calcSubnetStatusIP(subnet)
 		}
 		if err != nil {
-			klog.Errorf("failed to calculate subnet %s used ip: %v", subnet.Name, err)
+			klog.Errorf("failed to calculate subnet %s used ip: %v", cachedSubnet.Name, err)
 			return err
 		}