diff --git a/spin/spin.d.ts b/spin/spin.d.ts
index 52a9ac751b..f48adbb5ef 100644
--- a/spin/spin.d.ts
+++ b/spin/spin.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for Spin.js 1.2
+// Type definitions for Spin.js 1.3
 // Project: http://fgnass.github.com/spin.js/
 // Definitions by: Boris Yankov <https://github.com/borisyankov/>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
@@ -11,6 +11,7 @@ interface SpinnerOptions {
     radius?: number; // The radius of the inner circle
     corners?: number; // Corner roundness (0..1)
     rotate?: number; // The rotation offset
+    direction?: number; // 1: clockwise, -1: counterclockwise
     color?: string; // #rgb or #rrggbb
     speed?: number; // Rounds per second
     trail?: number; // Afterglow percentage