diff --git a/through/through-tests.ts b/through/through-tests.ts
new file mode 100644
index 000000000..93fc6d2fa
--- /dev/null
+++ b/through/through-tests.ts
@@ -0,0 +1,9 @@
+import through = require('through');
+
+var i = 0;
+through(
+	function () {
+		this.queue((i++).toString());
+	}, function () {
+		this.queue(null);
+	}, { autoDestroy: true }).pipe(process.stdout);
\ No newline at end of file
diff --git a/through/through.d.ts b/through/through.d.ts
new file mode 100644
index 000000000..7d2adce5e
--- /dev/null
+++ b/through/through.d.ts
@@ -0,0 +1,24 @@
+// Type definitions for through
+// Project: https://github.com/dominictarr/through
+// Definitions by: Andrew Gaspar <https://github.com/AndrewGaspar/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts" />
+
+declare module "through" {
+	import Stream = require("stream");
+
+	function through(write?: (data) => void,
+		end?: () => void,
+		opts?: {
+			autoDestroy: boolean;
+		}): through.ThroughStream;
+
+	module through {
+		export interface ThroughStream extends Stream.ReadWriteStream {
+			autoDestroy: boolean;
+		}
+	}
+
+	export = through;
+}
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