diff --git a/styleguide/assets/dark.css b/styleguide/assets/dark.css
index a77aa4a8af..32621377b6 100644
--- a/styleguide/assets/dark.css
+++ b/styleguide/assets/dark.css
@@ -1,3 +1,7 @@
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
 [data-theme-dark] {
 	--color-main-background:#171717;
 	--color-main-background-rgb:23,23,23;
diff --git a/styleguide/assets/default.css b/styleguide/assets/default.css
index 1dd1688a6c..a3ac11b16c 100644
--- a/styleguide/assets/default.css
+++ b/styleguide/assets/default.css
@@ -1,5 +1,7 @@
-/** SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors */
-/** SPDX-License-Identifier: AGPL-3.0-or-later */
+/**
+ * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
 :root {
   --color-main-background: #ffffff;
   --color-main-background-rgb: 255,255,255;