diff --git a/synced-pool.go b/synced-pool.go
index a120751..193276b 100644
--- a/synced-pool.go
+++ b/synced-pool.go
@@ -319,16 +319,23 @@ func (p *SyncedPool) RequestOwnership(id CartId) error {
 		ok++
 	}
 	if ok == 0 && all > 0 {
-		delete(p.local.grains, id)
+		p.removeLocalGrain(id)
 		return fmt.Errorf("no remotes confirmed change")
 	}
-	if ok < (all / 2) {
-		delete(p.local.grains, id)
+	if (all < 3 && ok < all) || ok < (all/2) {
+		p.removeLocalGrain(id)
 		return fmt.Errorf("quorum not reached")
 	}
 	return nil
 }
 
+func (p *SyncedPool) removeLocalGrain(id CartId) {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	delete(p.local.grains, id)
+	delete(p.remoteIndex, id)
+}
+
 func (p *SyncedPool) addRemoteHost(address string, remote *RemoteHost) error {
 	known := make([]string, 0, len(p.remotes))
 	for _, r := range p.remotes {