diff --git a/doc/ubuntu_package_howto.txt b/doc/ubuntu_package_howto.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cb78d3cbee6f77fbf06ab4ec3f4bf197d160dacc
--- /dev/null
+++ b/doc/ubuntu_package_howto.txt
@@ -0,0 +1,6 @@
+dget -u http://pappso.inra.fr/debian/pool/main/x/xtpcpp/xtpcpp_0.4.0-1.dsc
+cd xtpcpp-0.4.0/
+rm -rf debian/source
+dch -l~ubuntu+ -Dbionic "Rebuild for Ubuntu Bionic PAPPSO" 
+dpkg-buildpackage
+