diff --git a/commonspace/space.go b/commonspace/space.go
index ab0bf5df..f1a25684 100644
--- a/commonspace/space.go
+++ b/commonspace/space.go
@@ -106,6 +106,7 @@ type Space interface {
 
 	HandleMessage(ctx context.Context, msg HandleMessage) (err error)
 
+	TryClose() (close bool, err error)
 	Close() error
 }