diff --git a/frontend/constants/index.ts b/frontend/constants/index.ts
index 3f466ab..4ac059c 100644
--- a/frontend/constants/index.ts
+++ b/frontend/constants/index.ts
@@ -78,6 +78,7 @@ export const QUERY_KEYS = {
     ticket: "ticket",
     orders: "orders",
     cart: "cart",
+    transaction: "transaction",
 };
 
 export const MUTATION_KEYS = {