why cant Dhone introduce himself?

dhoni.js

// question: why cant Dhone introduce himself?
// please fix it. Make Dhoni introduce himself!

var Man = function( name ) {
  this.name = name
}

Man.prototype.introduce = function() {
  console.log( this.name )
}

// make a new instance of a Man
var dhoni = new Man('Dhoni')

// make Dhoni introduce himself immediately
dhoni.introduce()

// in 1 second we want Dhoni to introduce himself again
setTimeout( dhoni.introduce , 1000 )

@@ -1,4 +1,4 @@
-// question: why cant Dhone introduce himself?
+// question: why cant Dhoni introduce himself?