diff --git a/src/K8sOperator.NET/Metadata/NamespaceMetadata.cs b/src/K8sOperator.NET/Metadata/NamespaceMetadata.cs
index 7745462..b2c0307 100644
--- a/src/K8sOperator.NET/Metadata/NamespaceMetadata.cs
+++ b/src/K8sOperator.NET/Metadata/NamespaceMetadata.cs
@@ -18,7 +18,7 @@ public interface INamespaceMetadata
 /// Sets the Namespace
 /// </summary>
 /// <param name="ns"></param>
-[AttributeUsage(AttributeTargets.Class)]
+[AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class)]
 public sealed class NamespaceAttribute(string ns) : Attribute, INamespaceMetadata
 {
     /// <summary>