diff --git a/internal/gmnhg/org.go b/internal/gmnhg/org.go
index f54c3de..e41b9bb 100644
--- a/internal/gmnhg/org.go
+++ b/internal/gmnhg/org.go
@@ -1,3 +1,18 @@
+// This file is part of gmnhg.
+
+// gmnhg is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// gmnhg is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with gmnhg. If not, see <https://www.gnu.org/licenses/>.
+
 package gmnhg
 
 import (
diff --git a/internal/gmnhg/post.go b/internal/gmnhg/post.go
index fc9c816..8e9b9d5 100644
--- a/internal/gmnhg/post.go
+++ b/internal/gmnhg/post.go
@@ -1,3 +1,18 @@
+// This file is part of gmnhg.
+
+// gmnhg is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// gmnhg is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with gmnhg. If not, see <https://www.gnu.org/licenses/>.
+
 package gmnhg
 
 import (
diff --git a/internal/gmnhg/templates.go b/internal/gmnhg/templates.go
index 7743e54..b7b8c55 100644
--- a/internal/gmnhg/templates.go
+++ b/internal/gmnhg/templates.go
@@ -1,3 +1,18 @@
+// This file is part of gmnhg.
+
+// gmnhg is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// gmnhg is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with gmnhg. If not, see <https://www.gnu.org/licenses/>.
+
 package gmnhg
 
 import (