diff --git a/backend/app/rest/api/rest_public_test.go b/backend/app/rest/api/rest_public_test.go
index b6894659..1cd980f1 100644
--- a/backend/app/rest/api/rest_public_test.go
+++ b/backend/app/rest/api/rest_public_test.go
@@ -733,6 +733,13 @@ func TestRest_LastCommentsStream(t *testing.T) {
 	srv.pubRest.streamer.TimeOut = 500 * time.Millisecond
 	srv.pubRest.streamer.MaxActive = 100
 
+	// stream endpoint currently relies on real cache being present
+	cacheBackend, err := cache.NewExpirableCache()
+	require.NoError(t, err)
+	memCache := cache.NewScache(cacheBackend)
+	srv.privRest.cache = memCache
+	srv.pubRest.cache = memCache
+
 	postComment(t, ts.URL)
 
 	defer teardown()
@@ -788,6 +795,13 @@ func TestRest_LastCommentsStreamCancel(t *testing.T) {
 	srv.pubRest.streamer.TimeOut = 500 * time.Millisecond
 	srv.pubRest.streamer.MaxActive = 100
 
+	// stream endpoint currently relies on real cache being present
+	cacheBackend, err := cache.NewExpirableCache()
+	require.NoError(t, err)
+	memCache := cache.NewScache(cacheBackend)
+	srv.privRest.cache = memCache
+	srv.pubRest.cache = memCache
+
 	postComment(t, ts.URL)
 
 	defer teardown()
@@ -854,6 +868,13 @@ func TestRest_LastCommentsStreamSince(t *testing.T) {
 	srv.pubRest.streamer.TimeOut = 500 * time.Millisecond
 	srv.pubRest.streamer.MaxActive = 100
 
+	// stream endpoint currently relies on real cache being present
+	cacheBackend, err := cache.NewExpirableCache()
+	require.NoError(t, err)
+	memCache := cache.NewScache(cacheBackend)
+	srv.privRest.cache = memCache
+	srv.pubRest.cache = memCache
+
 	postComment(t, ts.URL)
 
 	defer teardown()
diff --git a/backend/app/rest/api/rest_test.go b/backend/app/rest/api/rest_test.go
index ec892769..4c393816 100644
--- a/backend/app/rest/api/rest_test.go
+++ b/backend/app/rest/api/rest_test.go
@@ -342,9 +342,7 @@ func startupT(t *testing.T) (ts *httptest.Server, srv *Rest, teardown func()) {
 	b, err := engine.NewBoltDB(bolt.Options{}, engine.BoltSite{FileName: testDb, SiteID: "remark42"})
 	require.NoError(t, err)
 
-	cacheBackend, err := cache.NewExpirableCache()
-	require.NoError(t, err)
-	memCache := cache.NewScache(cacheBackend)
+	memCache := cache.NewScache(cache.NewNopCache())
 
 	astore := adminstore.NewStaticStore("123456", []string{"remark42"}, []string{"a1", "a2"}, "admin@remark-42.com")
 	restrictedWordsMatcher := service.NewRestrictedWordsMatcher(service.StaticRestrictedWordsLister{Words: []string{"duck"}})