diff --git a/SECURITY.md b/SECURITY.md
index db73535bb..3c2c737d4 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -1,3 +1,9 @@
+<!--
+SPDX-FileCopyrightText: 2022 Linus Jahn <lnj@kaidan.im>
+
+SPDX-License-Identifier: CC0-1.0
+-->
+
 # Security Policy
 
 ## Supported Versions
diff --git a/src/omemo/README.md b/src/omemo/README.md
index 609c8c247..1f48e9b37 100644
--- a/src/omemo/README.md
+++ b/src/omemo/README.md
@@ -1,3 +1,9 @@
+<!--
+SPDX-FileCopyrightText: 2022 Linus Jahn <lnj@kaidan.im>
+
+SPDX-License-Identifier: CC0-1.0
+-->
+
 QXmpp OMEMO module
 ==================