diff --git a/main.go b/main.go
index 8a93484..755cfa4 100644
--- a/main.go
+++ b/main.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 Christoph Mewes
+// SPDX-License-Identifier: MIT
+
 package main
 
 import (
diff --git a/pkg/collector/disk.go b/pkg/collector/disk.go
index 7ec5276..676140f 100644
--- a/pkg/collector/disk.go
+++ b/pkg/collector/disk.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 Christoph Mewes
+// SPDX-License-Identifier: MIT
+
 package collector
 
 import (
diff --git a/pkg/collector/interface.go b/pkg/collector/interface.go
index 7d07181..13eec09 100644
--- a/pkg/collector/interface.go
+++ b/pkg/collector/interface.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 Christoph Mewes
+// SPDX-License-Identifier: MIT
+
 package collector
 
 import (
diff --git a/pkg/collector/multiplex.go b/pkg/collector/multiplex.go
index e3b6587..f65490d 100644
--- a/pkg/collector/multiplex.go
+++ b/pkg/collector/multiplex.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 Christoph Mewes
+// SPDX-License-Identifier: MIT
+
 package collector
 
 import (
diff --git a/pkg/collector/stream.go b/pkg/collector/stream.go
index b16666e..1d8e3c9 100644
--- a/pkg/collector/stream.go
+++ b/pkg/collector/stream.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 Christoph Mewes
+// SPDX-License-Identifier: MIT
+
 package collector
 
 import (
diff --git a/pkg/watcher/watcher.go b/pkg/watcher/watcher.go
index 5d255d8..a90cc07 100644
--- a/pkg/watcher/watcher.go
+++ b/pkg/watcher/watcher.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 Christoph Mewes
+// SPDX-License-Identifier: MIT
+
 package watcher
 
 import (