diff --git a/001-quickstart/Program.cs b/001-quickstart/Program.cs
index 37eaedb..f5d3145 100644
--- a/001-quickstart/Program.cs
+++ b/001-quickstart/Program.cs
@@ -8,7 +8,7 @@
 
 // <client_credentials> 
 // New instance of CosmosClient class
-var client = new MongoClient(Environment.GetEnvironmentVariable("MONGO_CONNECTION"));
+var client = new MongoClient(Environment.GetEnvironmentVariable("COSMOS_CONNECTION_STRING"));
 // </client_credentials>
 
 // <new_database> 
@@ -57,4 +57,4 @@
 {
     Console.WriteLine(prod.Name);
 }
-// </query_items>
\ No newline at end of file
+// </query_items>