diff --git a/README.md b/README.md
index c231d7f..039d330 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ obj.set('frequency', 440) // returns 440
  * as callback(obj, {
  *   p: property,
  *   w: wornValue, // (oldValue)
- *   n, value
+ *   n: value
  * })
  */
 ```