diff --git a/jquery.autosize/jquery.autosize.d.ts b/jquery.autosize/jquery.autosize.d.ts
new file mode 100644
index 000000000..5b9f9adfb
--- /dev/null
+++ b/jquery.autosize/jquery.autosize.d.ts
@@ -0,0 +1,21 @@
+// Type definitions for jquery.autosize (un-versioned)
+// Project: http://www.jacklmoore.com/autosize/
+// Definitions by: Aaron T. King <https://github.com/kingdango>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../jquery/jquery.d.ts" />
+
+interface AutosizeOptions {
+	className?: string;
+	append?: string;
+	callback?: Function;
+}
+
+interface Autosize {
+	(): JQuery;
+	(options: AutosizeOptions): JQuery;
+}
+
+interface JQuery {
+	autosize: Autosize;
+}
\ No newline at end of file