diff --git a/users/aspen/web/Makefile b/users/aspen/web/Makefile
index cf3da73c9..ee6ed2fd8 100644
--- a/users/aspen/web/Makefile
+++ b/users/aspen/web/Makefile
@@ -35,3 +35,6 @@ backup:
 
 open:
 	$$BROWSER "https://www.gws.fyi"
+
+preview:
+	$$BROWSER "$(shell mg build website)/index.html"