diff --git a/pkg/service/cast/media.go b/pkg/service/cast/media.go
index 566e955..a690abe 100644
--- a/pkg/service/cast/media.go
+++ b/pkg/service/cast/media.go
@@ -409,10 +409,14 @@ func SyncAsAuth(artistUuid string) error {
 		if platformIDENUM == cast.PlatformIDENUM_UNKNOWN {
 			continue
 		}
+		asID := v.Id
+		if platformIDENUM == cast.PlatformIDENUM_BULESKY && asID == "" {
+			asID = v.Username
+		}
 		authReq.Data = append(authReq.Data, &cast.UpdateOAuthReq_Info{
 			ArtistUuid:       artistUuid,
 			PlatformID:       platformIDENUM,
-			AsID:             v.Id,
+			AsID:             asID,
 			PlatformUserName: v.Username,
 			AutInfo:          string(asInfoB),
 		})