diff --git a/pkg/block/block_test.go b/pkg/block/block_test.go
index 710de679940..3c5df6c2a8c 100644
--- a/pkg/block/block_test.go
+++ b/pkg/block/block_test.go
@@ -183,7 +183,7 @@ func TestUpload(t *testing.T) {
 		// Full block.
 		testutil.Ok(t, Upload(ctx, log.NewNopLogger(), bkt, path.Join(tmpDir, "test", b1.String())))
 		testutil.Equals(t, 4, len(bkt.Objects()))
-		testutil.Equals(t, 3751, len(bkt.Objects()[path.Join(b1.String(), ChunksDirname, "000001")]))
+		testutil.Equals(t, 3753, len(bkt.Objects()[path.Join(b1.String(), ChunksDirname, "000001")]))
 		testutil.Equals(t, 401, len(bkt.Objects()[path.Join(b1.String(), IndexFilename)]))
 		testutil.Equals(t, 383, len(bkt.Objects()[path.Join(b1.String(), MetaFilename)]))
 	}