diff --git a/internal/pkg/core/applicant/acme-dns-01/lego-providers/baiducloud/internal/lego.go b/internal/pkg/core/applicant/acme-dns-01/lego-providers/baiducloud/internal/lego.go
index 721326a7..0d3f9c66 100644
--- a/internal/pkg/core/applicant/acme-dns-01/lego-providers/baiducloud/internal/lego.go
+++ b/internal/pkg/core/applicant/acme-dns-01/lego-providers/baiducloud/internal/lego.go
@@ -133,7 +133,7 @@ func (d *DNSProvider) getDNSRecord(zoneName, subDomain string) (*bceDns.Record,
 	pageSize := 1000
 	for {
 		request := &bceDns.ListRecordRequest{}
-		request.Rr = zoneName
+		request.Rr = subDomain
 		request.Marker = pageMarker
 		request.MaxKeys = pageSize