diff --git a/src/compiler/utils/names.ts b/src/compiler/utils/names.ts
index e091edb19eba..1985e7277dfd 100644
--- a/src/compiler/utils/names.ts
+++ b/src/compiler/utils/names.ts
@@ -10,6 +10,7 @@ export const globals = new Set([
 	'clearTimeout',
 	'confirm',
 	'console',
+	'CustomEvent',
 	'Date',
 	'decodeURI',
 	'decodeURIComponent',