diff --git a/Makefile.am b/Makefile.am
index 5838c5e0..097677ec 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,3 +1,23 @@
+#
+# Spreed WebRTC.
+# Copyright (C) 2013-2014 struktur AG
+#
+# This file is part of Spreed WebRTC.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 AUTOMAKE_OPTIONS = -Wno-portability
 
 PKG := app/spreed-webrtc-server
diff --git a/configure.ac b/configure.ac
index 637d72b5..fd4319d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,3 +1,23 @@
+#
+# Spreed WebRTC.
+# Copyright (C) 2013-2014 struktur AG
+#
+# This file is part of Spreed WebRTC.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 dnl required version of autoconf
 AC_PREREQ([2.53])