diff --git a/global.h b/global.h
index f0f543d..c2fc395 100644
--- a/global.h
+++ b/global.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018-2020 QuasarApp.
+ * Distributed under the lgplv3 software license, see the accompanying
+ * Everyone is permitted to copy and distribute verbatim copies
+ * of this license document, but changing it is not allowed.
+*/
+
 #ifndef GLOBAL_H
 #define GLOBAL_H
 
diff --git a/helpdata.h b/helpdata.h
index b071e80..36a790b 100644
--- a/helpdata.h
+++ b/helpdata.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018-2020 QuasarApp.
+ * Distributed under the lgplv3 software license, see the accompanying
+ * Everyone is permitted to copy and distribute verbatim copies
+ * of this license document, but changing it is not allowed.
+*/
+
 #ifndef HELPDATA_H
 #define HELPDATA_H