diff --git a/src/alerts.js b/src/alerts.js
index 7a8c8ade..8d604261 100755
--- a/src/alerts.js
+++ b/src/alerts.js
@@ -11,7 +11,7 @@ async function addAlert(alert, sessionUser) {
 		throw new HttpError('You are not authenthicated', 401);
 	}
 
-	if (!alert.actors?.length > 0 && !alert.tags?.length > 0 && !alert.entity && !alert.matches?.length > 0) {
+	if ((!alert.actors || alert.actors.length === 0) && (!alert.tags || alert.tags.length === 0) && (!alert.entities || alert.entities.length === 0) && (!alert.matches || alert.matches.length === 0)) {
 		throw new HttpError('Alert must contain at least one actor, tag or entity', 400);
 	}