diff --git a/Instructions/Labs/LAB_06-Implement_Network_Traffic_Management.md b/Instructions/Labs/LAB_06-Implement_Network_Traffic_Management.md
index 6634058d..9bbf19f0 100644
--- a/Instructions/Labs/LAB_06-Implement_Network_Traffic_Management.md
+++ b/Instructions/Labs/LAB_06-Implement_Network_Traffic_Management.md
@@ -220,7 +220,7 @@ In this task, you implement an Azure Application Gateway in front of two Azure v
     | Frontend IP address type | **Public** |
     | Public IP address| **Add new** |
     | Name | `az104-gwpip` |
-    | Availability zone | **None** |
+    | Availability zone | **1** |
 
     >**Note:** The Application Gateway can have both a public and private IP address.