diff --git a/frontend/src/app/cache.ts b/frontend/src/app/cache.ts
index 578cd6d..34c8cd1 100644
--- a/frontend/src/app/cache.ts
+++ b/frontend/src/app/cache.ts
@@ -53,7 +53,7 @@ const initialState: CacheState = {
   exactResultsCourses: [],
   allCourses: [],
   allInstructors: [],
-  fuseIndex: null,
+  fuseIndex: {},
   instructorsLoading: false,
   instructorPage: 1,
   selectedInstructors: [],