diff --git a/services/syncbase/vsync/sync.go b/services/syncbase/vsync/sync.go
index 8640fe6..cf23497 100644
--- a/services/syncbase/vsync/sync.go
+++ b/services/syncbase/vsync/sync.go
@@ -139,6 +139,7 @@
 type syncAdvertisementState struct {
 	cancel      context.CancelFunc // cancels advertising.
 	specVersion string             // version of most recently advertised spec.
+	adId        discovery.AdId
 }
 
 var (
@@ -518,7 +519,8 @@
 		return err
 	}
 
-	if state, advertising := s.advSyncgroups[gid]; advertising {
+	state, advertising := s.advSyncgroups[gid]
+	if advertising {
 		// The spec hasn't changed since the last advertisement.
 		if sg.SpecVersion == state.specVersion {
 			return nil
@@ -542,6 +544,9 @@
 			wire.DiscoveryAttrSyncgroupBlessing: sg.Id.Blessing,
 		},
 	}
+	if advertising {
+		sbService.Id = state.adId
+	}
 	ctx, stop := context.WithCancel(s.ctx)
 
 	vlog.VI(4).Infof("sync: advertiseSyncgroupInNeighborhood: advertising %v", sbService)
@@ -554,7 +559,7 @@
 	_, err = idiscovery.AdvertiseServer(ctx, s.discovery, s.svr, "", &sbService, visibility)
 	if err == nil {
 		vlog.VI(4).Infof("sync: advertiseSyncgroupInNeighborhood: successful")
-		s.advSyncgroups[gid] = syncAdvertisementState{cancel: stop, specVersion: sg.SpecVersion}
+		s.advSyncgroups[gid] = syncAdvertisementState{cancel: stop, specVersion: sg.SpecVersion, adId: sbService.Id}
 		return nil
 	}
 	stop()
diff --git a/services/syncbase/vsync/syncgroup.go b/services/syncbase/vsync/syncgroup.go
index 763807d..6db580d 100644
--- a/services/syncbase/vsync/syncgroup.go
+++ b/services/syncbase/vsync/syncgroup.go
@@ -1277,7 +1277,7 @@
 	// Try to join using an Admin on neighborhood in case this node does not
 	// have connectivity.
 	neighbors := ss.filterSyncgroupAdmins(dbId, sgId)
-	c = interfaces.SyncClient("")
+	c := interfaces.SyncClient("")
 	for _, svc := range neighbors {
 		me := &naming.MountEntry{IsLeaf: true, Name: common.SyncbaseSuffix}
 		// TODO(fredq): check that the service at addr has the expectedSyncbaseBlessings.