diff --git a/lib/io.js b/lib/io.js
index 9fee258..34d3ac3 100644
--- a/lib/io.js
+++ b/lib/io.js
@@ -216,7 +216,7 @@ Stream.prototype.close = function() {
 		});
 		Fiber.yield();
 	}
-	if (typeof this.stream.close === 'function') {
+	if (this.stream && typeof this.stream.close === 'function') {
 		this.stream.close();
 	}
 	this.ended = true;