diff --git a/web/src/stores/session.ts b/web/src/stores/session.ts
index eba19d1..73d5a0b 100644
--- a/web/src/stores/session.ts
+++ b/web/src/stores/session.ts
@@ -21,7 +21,7 @@ export interface Budget {
 export const useSessionStore = defineStore('session', {
     state: () => ({
         Session: useStorage<Session>('session', null, undefined, { serializer: StorageSerializers.object }),
-        Budgets: useStorage<Map<string, Budget>>('budgets', new Map<string, Budget>()),
+        Budgets: useStorage<Map<string, Budget>>('budgets', new Map<string, Budget>(), undefined, { serializer: StorageSerializers.map }),
     }),
     getters: {
         BudgetsList: (state) => [ ...state.Budgets.values() ],