diff --git a/HaversineDistance/HaversineDistance.playground/Contents.swift b/HaversineDistance/HaversineDistance.playground/Contents.swift
index 3d8d60f54..ed89b4462 100644
--- a/HaversineDistance/HaversineDistance.playground/Contents.swift
+++ b/HaversineDistance/HaversineDistance.playground/Contents.swift
@@ -1,6 +1,6 @@
 import UIKit
 
-func haversineDinstance(la1: Double, lo1: Double, la2: Double, lo2: Double, radius: Double = 6367444.7) -> Double {
+func haversineDistance(la1: Double, lo1: Double, la2: Double, lo2: Double, radius: Double = 6367444.7) -> Double {
     
     let haversin = { (angle: Double) -> Double in
         return (1 - cos(angle))/2
@@ -27,4 +27,4 @@ let amsterdam = (52.3702, 4.8952)
 let newYork = (40.7128, -74.0059)
 
 // Google says it's 5857 km so our result is only off by 2km which could be due to all kinds of things, not sure how google calculates the distance or which latitude and longitude google uses to calculate the distance.
-haversineDinstance(la1: amsterdam.0, lo1: amsterdam.1, la2: newYork.0, lo2: newYork.1)
+haversineDistance(la1: amsterdam.0, lo1: amsterdam.1, la2: newYork.0, lo2: newYork.1)