diff --git a/src/kcms/effects/package/contents/ui/Effect.qml b/src/kcms/effects/package/contents/ui/Effect.qml
index 4648a803d1..1dddf14e52 100644
--- a/src/kcms/effects/package/contents/ui/Effect.qml
+++ b/src/kcms/effects/package/contents/ui/Effect.qml
@@ -1,6 +1,7 @@
 /*
     SPDX-FileCopyrightText: 2013 Antonis Tsiapaliokas <kok3rs@gmail.com>
     SPDX-FileCopyrightText: 2019 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+    SPDX-FileCopyrightText: 2023 ivan tkachenko <me@ratijas.tk>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
diff --git a/src/kcms/effects/package/contents/ui/Video.qml b/src/kcms/effects/package/contents/ui/Video.qml
index ddbd65221d..64de0e4d4e 100644
--- a/src/kcms/effects/package/contents/ui/Video.qml
+++ b/src/kcms/effects/package/contents/ui/Video.qml
@@ -1,6 +1,7 @@
 /*
     SPDX-FileCopyrightText: 2013 Antonis Tsiapaliokas <kok3rs@gmail.com>
     SPDX-FileCopyrightText: 2014 Martin Gräßlin <mgraesslin@kde.org>
+    SPDX-FileCopyrightText: 2023 ivan tkachenko <me@ratijas.tk>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
diff --git a/src/kcms/effects/package/contents/ui/main.qml b/src/kcms/effects/package/contents/ui/main.qml
index 7b4e0bbea0..33d8703541 100644
--- a/src/kcms/effects/package/contents/ui/main.qml
+++ b/src/kcms/effects/package/contents/ui/main.qml
@@ -1,6 +1,7 @@
 /*
     SPDX-FileCopyrightText: 2013 Antonis Tsiapaliokas <kok3rs@gmail.com>
     SPDX-FileCopyrightText: 2019 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+    SPDX-FileCopyrightText: 2023 ivan tkachenko <me@ratijas.tk>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */