diff --git a/src/build/create_manifest.clj b/src/build/create_manifest.clj
index 9c9b311..936fefd 100644
--- a/src/build/create_manifest.clj
+++ b/src/build/create_manifest.clj
@@ -6,6 +6,7 @@
 (defn render [module-id->output-name]
   (j/write-value-as-string
    {:name "Backgammon"
+    :description "Backgammon game with local multiplayer (no single player)."
     :icons [{:src (u/asset "img/icon.svg" module-id->output-name)
              :sizes "any"
              :type "image/svg+xml"}