diff --git a/src/node/db/SessionStore.js b/src/node/db/SessionStore.js
index 2c5d1ca25..2f1a2d0b7 100644
--- a/src/node/db/SessionStore.js
+++ b/src/node/db/SessionStore.js
@@ -41,4 +41,8 @@ module.exports = class SessionStore extends Store {
     logger.debug(`DESTROY ${sid}`);
     DB.db.remove(`sessionstorage:${sid}`, fn);
   }
+
+  store(fn) {
+    Store.length(null, fn);
+  }
 };