diff --git a/src/app/core/data/bitstream-data.service.spec.ts b/src/app/core/data/bitstream-data.service.spec.ts
index 6aa75065d4..68c6b4850c 100644
--- a/src/app/core/data/bitstream-data.service.spec.ts
+++ b/src/app/core/data/bitstream-data.service.spec.ts
@@ -37,6 +37,8 @@ import {
 } from './request.models';
 import { RequestService } from './request.service';
 import objectContaining = jasmine.objectContaining;
+import { RestResponse } from '../cache/response.models';
+import { RequestEntry } from './request-entry.model';
 
 describe('BitstreamDataService', () => {
   let service: BitstreamDataService;
@@ -47,6 +49,7 @@ describe('BitstreamDataService', () => {
   let rdbService: RemoteDataBuildService;
   let bundleDataService: BundleDataService;
   const bitstreamFormatHref = 'rest-api/bitstreamformats';
+  let responseCacheEntry: RequestEntry;
 
   const bitstream1 = Object.assign(new Bitstream(), {
     id: 'fake-bitstream1',
@@ -71,8 +74,13 @@ describe('BitstreamDataService', () => {
   const url = 'fake-bitstream-url';
 
   beforeEach(() => {
+    responseCacheEntry = new RequestEntry();
+    responseCacheEntry.request = { href: 'https://rest.api/' } as any;
+    responseCacheEntry.response = new RestResponse(true, 200, 'Success');
+
     objectCache = jasmine.createSpyObj('objectCache', {
       remove: jasmine.createSpy('remove'),
+      getByHref: observableOf(responseCacheEntry),
     });
     requestService = getMockRequestService();
     halService = Object.assign(new HALEndpointServiceStub(url));
diff --git a/src/app/core/data/bitstream-data.service.ts b/src/app/core/data/bitstream-data.service.ts
index bdf01efc5c..812522ea08 100644
--- a/src/app/core/data/bitstream-data.service.ts
+++ b/src/app/core/data/bitstream-data.service.ts
@@ -173,9 +173,11 @@ export class BitstreamDataService extends IdentifiableDataService<Bitstream> imp
     this.requestService.setStaleByHrefSubstring(bitsreamFormatUrl);
     // Delete also cache by uuid as the format could be cached also there
     this.objectCache.getByHref(bitsreamFormatUrl).pipe(take(1)).subscribe((cachedRequest) => {
-      const requestUuid = cachedRequest.requestUUIDs[0];
-      if (this.requestService.hasByUUID(requestUuid)) {
-        this.requestService.setStaleByUUID(requestUuid);
+      if (cachedRequest.requestUUIDs && cachedRequest.requestUUIDs.length > 0){
+        const requestUuid = cachedRequest.requestUUIDs[0];
+        if (this.requestService.hasByUUID(requestUuid)) {
+          this.requestService.setStaleByUUID(requestUuid);
+        }
       }
     });
   }