diff --git a/HandsOnLab/Readme.md b/HandsOnLab/Readme.md
index eccc98b..af6e82f 100644
--- a/HandsOnLab/Readme.md
+++ b/HandsOnLab/Readme.md
@@ -314,6 +314,7 @@ using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using System;
 using System.Net.Http;
+using System.Threading.Tasks;
 
 namespace My.Function
 {
@@ -325,7 +326,7 @@ namespace My.Function
         private static readonly HttpClient httpClient = new HttpClient();
 
         [FunctionName("TwinsFunction")]
-        public async void Run([EventGridTrigger] EventGridEvent eventGridEvent, ILogger log)
+        public async Task Run([EventGridTrigger] EventGridEvent eventGridEvent, ILogger log)
         {
             log.LogInformation(eventGridEvent.Data.ToString());
             if (adtInstanceUrl == null) log.LogError("Application setting \"ADT_SERVICE_URL\" not set");
@@ -851,4 +852,4 @@ Now to create a fourth tile, the `Anomalies Over the Hour` line chart.  This one
 
 1. To display the Tile details pane, click **Next**
 
-This is the end of the Hands On Lab!
\ No newline at end of file
+This is the end of the Hands On Lab!