diff --git a/firestore.indexes.json b/firestore.indexes.json
index 12e88033..1d09265c 100644
--- a/firestore.indexes.json
+++ b/firestore.indexes.json
@@ -22,6 +22,20 @@
         }
       ]
     },
+    {
+      "collectionGroup": "bets",
+      "queryScope": "COLLECTION_GROUP",
+      "fields": [
+        {
+          "fieldPath": "isFilled",
+          "order": "ASCENDING"
+        },
+        {
+          "fieldPath": "userId",
+          "order": "ASCENDING"
+        }
+      ]
+    },
     {
       "collectionGroup": "bets",
       "queryScope": "COLLECTION_GROUP",