diff --git a/test/fixtures/expectedProperties.json b/test/fixtures/expectedProperties.json
index 0afe245..09b6f6b 100644
--- a/test/fixtures/expectedProperties.json
+++ b/test/fixtures/expectedProperties.json
@@ -1,4 +1,6 @@
 [
+  "AbortController",
+  "AbortSignal",
   "ArrayBuffer",
   "Attr",
   "Audio",