diff --git a/avm/res/app/container-app/main.bicep b/avm/res/app/container-app/main.bicep
index da9beae640..201ba8da5b 100644
--- a/avm/res/app/container-app/main.bicep
+++ b/avm/res/app/container-app/main.bicep
@@ -1,6 +1,5 @@
 metadata name = 'Container Apps'
 metadata description = 'This module deploys a Container App.'
-metadata owner = 'Azure/module-maintainers'
 
 @description('Required. Name of the Container App.')
 param name string
@@ -334,7 +333,7 @@ output resourceGroupName string = resourceGroup().name
 output name string = containerApp.name
 
 @description('The principal ID of the system assigned identity.')
-output systemAssignedMIPrincipalId string = containerApp.?identity.?principalId ?? ''
+output systemAssignedMIPrincipalId string? = containerApp.?identity.?principalId
 
 @description('The location the resource was deployed into.')
 output location string = containerApp.location