diff --git a/osbase/bringup/test/main_error.go b/osbase/bringup/test/main_error.go
index f632c1b..d94187e 100644
--- a/osbase/bringup/test/main_error.go
+++ b/osbase/bringup/test/main_error.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/osbase/bringup/test/main_panic.go b/osbase/bringup/test/main_panic.go
index 739f16e..e820a34 100644
--- a/osbase/bringup/test/main_panic.go
+++ b/osbase/bringup/test/main_panic.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/osbase/bringup/test/main_succeeded.go b/osbase/bringup/test/main_succeeded.go
index b86d314..e7bbc39 100644
--- a/osbase/bringup/test/main_succeeded.go
+++ b/osbase/bringup/test/main_succeeded.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/osbase/bringup/test/run_test.go b/osbase/bringup/test/run_test.go
index b560c8c..70003cb 100644
--- a/osbase/bringup/test/run_test.go
+++ b/osbase/bringup/test/run_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package test
 
 import (