diff --git a/src/k8s-extension/azext_k8s_extension/partner_extensions/AzureDefender.py b/src/k8s-extension/azext_k8s_extension/partner_extensions/AzureDefender.py
index 4dce31b9764..e0d6d047292 100644
--- a/src/k8s-extension/azext_k8s_extension/partner_extensions/AzureDefender.py
+++ b/src/k8s-extension/azext_k8s_extension/partner_extensions/AzureDefender.py
@@ -32,7 +32,7 @@ def Create(self, cmd, client, resource_group_name, cluster_name, name, cluster_t
         # Hardcoding  name, release_namespace and scope since ci only supports one instance and cluster scope
         # and platform doesn't have support yet extension specific constraints like this
         name = extension_type.lower()
-        release_namespace = "azuredefender"
+        release_namespace = "mdc"
         # Scope is always cluster
         scope_cluster = ScopeCluster(release_namespace=release_namespace)
         ext_scope = Scope(cluster=scope_cluster, namespace=None)