diff --git a/src/lib/slider/slider.ts b/src/lib/slider/slider.ts
index 32822f257cc..e0c374c9711 100644
--- a/src/lib/slider/slider.ts
+++ b/src/lib/slider/slider.ts
@@ -55,7 +55,7 @@ export class MdSliderChange {
   /** The MdSlider that changed. */
   source: MdSlider;
 
-  /** Thew new value of the source slider. */
+  /** The new value of the source slider. */
   value: number;
 }