diff --git a/backend/cache/cache_test.go b/backend/cache/cache_test.go
index f0d29a267..547861234 100644
--- a/backend/cache/cache_test.go
+++ b/backend/cache/cache_test.go
@@ -15,7 +15,9 @@ import (
 // TestIntegration runs integration tests against the remote
 func TestIntegration(t *testing.T) {
 	fstests.Run(t, &fstests.Opt{
-		RemoteName: "TestCache:",
-		NilObject:  (*cache.Object)(nil),
+		RemoteName:                   "TestCache:",
+		NilObject:                    (*cache.Object)(nil),
+		UnimplementableFsMethods:     []string{"PublicLink", "MergeDirs"},
+		UnimplementableObjectMethods: []string{"MimeType", "ID", "GetTier", "SetTier"},
 	})
 }