diff --git a/models/boards.js b/models/boards.js
index 76a8f704d..c51a98650 100644
--- a/models/boards.js
+++ b/models/boards.js
@@ -372,6 +372,7 @@ Boards.helpers({
 
   cardsInInterval(start, end) {
     return Cards.find({
+      boardId: this._id,
       $or: [
         {
           startAt: {