diff --git a/service/beatleader/bind_bl.go b/service/beatleader/bind_bl.go
index b2b86c0..276dde2 100644
--- a/service/beatleader/bind_bl.go
+++ b/service/beatleader/bind_bl.go
@@ -368,6 +368,9 @@ func (bl *blQuery) GetRecentScores(count int, qqId string) ([]RecordDataLite, er
 }
 
 func GetSongIdsByHash(hashs []string) (hashToSongId map[string]string, err error) {
+	if len(hashs) == 0 {
+		return nil, nil
+	}
 	//每批最多49个
 	hashToSongId = make(map[string]string)
 	batchSize := 49
diff --git a/service/scoresaber/bind_ss.go b/service/scoresaber/bind_ss.go
index fb69f6b..61ca9ba 100644
--- a/service/scoresaber/bind_ss.go
+++ b/service/scoresaber/bind_ss.go
@@ -396,6 +396,9 @@ func (ss *ssQuery) GetRecentScores(count int, qqId string) ([]RecordDataLite, er
 }
 
 func GetSongIdsByHash(hashs []string) (hashToSongId map[string]string, err error) {
+	if len(hashs) == 0 {
+		return nil, nil
+	}
 	//每批最多49个
 	hashToSongId = make(map[string]string)
 	batchSize := 49