diff --git a/lib/FredyRuntime.js b/lib/FredyRuntime.js
index 0513d36..412ac64 100755
--- a/lib/FredyRuntime.js
+++ b/lib/FredyRuntime.js
@@ -106,6 +106,9 @@ class FredyRuntime {
   }
 
   _notify(newListings) {
+    if (newListings.length === 0) {
+      throw new NoNewListingsWarning();
+    }
     const sendNotifications = notify.send(this._providerId, newListings, this._notificationConfig, this._jobKey);
     return Promise.all(sendNotifications).then(() => newListings);
   }