diff --git a/internal/api/config.go b/internal/api/config.go
index 2c23480..15e1717 100644
--- a/internal/api/config.go
+++ b/internal/api/config.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and IronCore contributors
+// SPDX-License-Identifier: MIT
+
 package api
 
 type Machines struct {
diff --git a/internal/kubernetes/client.go b/internal/kubernetes/client.go
index 1a10787..ccbb59a 100644
--- a/internal/kubernetes/client.go
+++ b/internal/kubernetes/client.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and IronCore contributors
+// SPDX-License-Identifier: MIT
+
 package kubernetes
 
 import (
diff --git a/plugins/metal/plugin.go b/plugins/metal/plugin.go
index e52f880..01442a5 100644
--- a/plugins/metal/plugin.go
+++ b/plugins/metal/plugin.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and IronCore contributors
+// SPDX-License-Identifier: MIT
+
 package metal
 
 import (
diff --git a/plugins/metal/plugin_test.go b/plugins/metal/plugin_test.go
index 18f9a7b..166817f 100644
--- a/plugins/metal/plugin_test.go
+++ b/plugins/metal/plugin_test.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and IronCore contributors
+// SPDX-License-Identifier: MIT
+
 package metal
 
 import (
diff --git a/plugins/metal/suite_test.go b/plugins/metal/suite_test.go
index e5b31ed..45a697d 100644
--- a/plugins/metal/suite_test.go
+++ b/plugins/metal/suite_test.go
@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and IronCore contributors
-// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
 
 package metal