diff --git a/src/Cdn/Cdn.Autorest/custom/Start-AzFrontDoorCdnProfilePrepareMigration.ps1 b/src/Cdn/Cdn.Autorest/custom/Start-AzFrontDoorCdnProfilePrepareMigration.ps1
index 871cd818d71b..36915fa91ae9 100644
--- a/src/Cdn/Cdn.Autorest/custom/Start-AzFrontDoorCdnProfilePrepareMigration.ps1
+++ b/src/Cdn/Cdn.Autorest/custom/Start-AzFrontDoorCdnProfilePrepareMigration.ps1
@@ -222,7 +222,7 @@ function Start-AzFrontDoorCdnProfilePrepareMigration {
         $allPoliciesWithWAF = New-Object System.Collections.Generic.HashSet[string]
         $allPoliciesWithVault = New-Object System.Collections.Generic.HashSet[string]
         foreach ($info in $frontDoorInfos) {
-            $wafInfo = $info.WebApplicationFirewallPolicyLink
+            $wafInfo = $info.WebApplicationFirewallPolicyLinkId
             if ($wafInfo) {
                 $allPoliciesWithWAF.Add($wafInfo.ToLower())  | Out-Null
             }
@@ -575,4 +575,4 @@ function RetryCommand {
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/Cdn/Cdn/ChangeLog.md b/src/Cdn/Cdn/ChangeLog.md
index 3ec2c7535574..70d6e08ff4cb 100644
--- a/src/Cdn/Cdn/ChangeLog.md
+++ b/src/Cdn/Cdn/ChangeLog.md
@@ -19,6 +19,7 @@
 -->
 
 ## Upcoming Release
+* Bug fix for https://github.com/Azure/azure-powershell/issues/29231
 
 ## Version 6.0.0
 * Added support for edge action