diff --git a/splitio/proxy/caching/workers_test.go b/splitio/proxy/caching/workers_test.go
index fbdaed1d..a979c9d9 100644
--- a/splitio/proxy/caching/workers_test.go
+++ b/splitio/proxy/caching/workers_test.go
@@ -307,7 +307,6 @@ func (*splitStorageMock) TrafficTypeExists(trafficType string) bool { panic("uni
 func (*splitStorageMock) Update(toAdd []dtos.SplitDTO, toRemove []dtos.SplitDTO, changeNumber int64) {
 	panic("unimplemented")
 }
-func (*splitStorageMock) GetAllFlagSetNames() []string { return make([]string, 0) }
 
 type segmentUpdaterMock struct {
 	mock.Mock