diff --git a/cvat/apps/engine/cache.py b/cvat/apps/engine/cache.py
index e4d19f59..34753557 100644
--- a/cvat/apps/engine/cache.py
+++ b/cvat/apps/engine/cache.py
@@ -1,3 +1,7 @@
+# Copyright (C) 2020 Intel Corporation
+#
+# SPDX-License-Identifier: MIT
+
 from diskcache import Cache
 from django.conf import settings
 from cvat.apps.engine.media_extractors import (Mpeg4ChunkWriter, ZipChunkWriter,
diff --git a/cvat/apps/engine/prepare.py b/cvat/apps/engine/prepare.py
index 7e0fe395..97c07a84 100644
--- a/cvat/apps/engine/prepare.py
+++ b/cvat/apps/engine/prepare.py
@@ -1,3 +1,7 @@
+# Copyright (C) 2020 Intel Corporation
+#
+# SPDX-License-Identifier: MIT
+
 import av
 import hashlib