diff --git a/README.md b/README.md
index 22011e4096b1702b27a96c1882dd3abe0b60d4f5..25b95852faf76c1a460c975f301a3f009aa441a5 100644
--- a/README.md
+++ b/README.md
@@ -33,3 +33,7 @@ $ make
 $ make install
 $ make doc
 ```
+
+# Licence
+
+_libeisdrt_ is licenced to you under the LGPL version 3 , or (at your option) any later version. see lgpl-3.0.txt or [LGPL](https://www.gnu.org/licenses/lgpl-3.0.en.html) for details
diff --git a/doc/mainpage.txt b/doc/mainpage.txt
index c7b1645a49e00928419f29903eb7d449cbf2a67e..353420ef0425eb2b0ca31b0714b9673049c9b032 100644
--- a/doc/mainpage.txt
+++ b/doc/mainpage.txt
@@ -112,4 +112,8 @@ int main(int argc, char** argv)
 }
 ```
 
+# Licence
+
+_libeisdrt_ is licenced to you under the LGPL version 3 , or (at your option) any later version. see lgpl-3.0.txt or [LGPL](https://www.gnu.org/licenses/lgpl-3.0.en.html) for details
+
 */