diff --git a/src/runtime/node/http/response.ts b/src/runtime/node/http/response.ts
index f61bea5b..cd111a6c 100644
--- a/src/runtime/node/http/response.ts
+++ b/src/runtime/node/http/response.ts
@@ -79,8 +79,9 @@ export class ServerResponse extends Writable implements http.ServerResponse {
     return this
   }
 
-  setHeader (name: string, value: number | string | ReadonlyArray<string>): void {
+  setHeader (name: string, value: number | string | ReadonlyArray<string>): this {
     this._headers[name.toLowerCase()] = value + ''
+    return this
   }
 
   getHeader (name: string): number | string | string[] | undefined {
diff --git a/src/runtime/node/stream/writable.ts b/src/runtime/node/stream/writable.ts
index 46516705..deaca3f8 100644
--- a/src/runtime/node/stream/writable.ts
+++ b/src/runtime/node/stream/writable.ts
@@ -66,6 +66,8 @@ export class Writable extends EventEmitter implements stream.Writable {
     this.writableFinished = true
     this.emit('close')
     this.emit('finish')
+    // TODO: https://github.com/DefinitelyTyped/DefinitelyTyped/pull/57473
+    return this as unknown as void
   }
 
   cork (): void {
@@ -78,5 +80,7 @@ export class Writable extends EventEmitter implements stream.Writable {
     this.destroyed = true
     delete this._data
     this.removeAllListeners()
+    // TODO: https://github.com/DefinitelyTyped/DefinitelyTyped/pull/57473
+    return this as unknown as void
   }
 }