diff --git a/internal/output/html/script.js b/internal/output/html/script.js
index 53afbfeaa4..bb516edc7f 100644
--- a/internal/output/html/script.js
+++ b/internal/output/html/script.js
@@ -1,5 +1,4 @@
-const selectedTypeFilterValue = new Set();
-selectedTypeFilterValue.add("all");
+const selectedTypeFilterValue = new Set(["all"]);
 let selectedLayer = "all";
 
 function quickFilterByLayer(DiffID, layerCommand) {