diff --git a/internal/blob/azureblob/azureblob.go b/internal/blob/azureblob/azureblob.go
index f6242a062..a574ccc46 100644
--- a/internal/blob/azureblob/azureblob.go
+++ b/internal/blob/azureblob/azureblob.go
@@ -1,3 +1,9 @@
+// Copyright (C) 2025 The Syncthing Authors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at https://mozilla.org/MPL/2.0/.
+
 package azureblob
 
 import (
diff --git a/internal/blob/interface.go b/internal/blob/interface.go
index 7918cbcd6..8e595dc27 100644
--- a/internal/blob/interface.go
+++ b/internal/blob/interface.go
@@ -1,3 +1,9 @@
+// Copyright (C) 2025 The Syncthing Authors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at https://mozilla.org/MPL/2.0/.
+
 package blob
 
 import (