diff --git a/src/lib/es2015.symbol.wellknown.d.ts b/src/lib/es2015.symbol.wellknown.d.ts
index ed5d1ddbb38..1ab84be969f 100644
--- a/src/lib/es2015.symbol.wellknown.d.ts
+++ b/src/lib/es2015.symbol.wellknown.d.ts
@@ -251,7 +251,7 @@ interface String {
 }
 
 interface ArrayBuffer {
-    readonly [Symbol.toStringTag]: string;
+    readonly [Symbol.toStringTag]: "ArrayBuffer";
 }
 
 interface DataView<TArrayBuffer extends ArrayBufferLike> {