diff --git a/src/compiler/utils/names.ts b/src/compiler/utils/names.ts
index 1fa37660f4..7b6a6f55e0 100644
--- a/src/compiler/utils/names.ts
+++ b/src/compiler/utils/names.ts
@@ -18,6 +18,7 @@ export const globals = new Set([
 	'Error',
 	'EvalError',
 	'Event',
+	'EventSource',
 	'fetch',
 	'global',
 	'globalThis',