diff --git a/documentation/installation/packages_debian_ubuntu.md b/documentation/installation/packages_debian_ubuntu.md
index 019fafd4..7958c908 100644
--- a/documentation/installation/packages_debian_ubuntu.md
+++ b/documentation/installation/packages_debian_ubuntu.md
@@ -21,10 +21,12 @@ You need to rebuild source libcommuni and spectrum packages from our source pack
 
         $ apt-key adv --keyserver hkp://pool.sks-keyservers.net --recv-keys 1AFDEA51 
         $ apt-get install devscripts fakeroot libssl-dev libqt4-dev
-        $ dget -x http://packages.spectrum.im/spectrum2/pool/main/c/communi/communi_3.4.0-1.dsc
-        $ cd communi_3.4.0-1 && dpkg-buildpackage -rfakeroot -us -uc  && cd ..
+        $ echo "deb-src http://packages.spectrum.im/spectrum2/ stretch main" | sudo tee /etc/apt/sources.list.d/spectrum.list
+        $ echo "deb http://swift.im/packages/debian/sid beta main" | sudo tee -a /etc/apt/sources.list.d/spectrum.list
+        $ apt-get update
         # apt-get install libpurple-dev libswiften-dev libprotobuf-dev libmysqlclient-dev liblog4cxx10-dev protobuf-compiler libpopt-dev libdbus-glib-1-dev libpqxx3-dev cmake libevent-dev libboost-all-dev libidn11-dev libxml2-dev libavahi-client-dev libavahi-common-dev libcurl4-openssl-dev libsqlite3-dev libcommuni-dev
-        $ dget -x http://packages.spectrum.im/spectrum2/pool/main/s/spectrum2/spectrum2_2.0.3-1.dsc
+        $ apt-get source communi spectrum2
+        $ cd communi_3.5.0-1 && DEB_BUILD_OPTIONS=nocheck dpkg-buildpackage -rfakeroot -us -uc  && cd ..
         $ cd spectrum2_2.0.3-1 && DEB_BUILD_OPTIONS=nocheck dpkg-buildpackage -rfakeroot -us -uc  && cd ..
 
 When the compilation process has ended the .deb packages for libcommuni and spectrum will be generated in the current directory and can be installed with `dpkg -i < filename.deb >`.