-deb http://deb.grml.org/ grml-stable main
-deb http://deb.grml.org/ grml-testing main
-deb http://cdn.debian.net/debian $SUITE main contrib non-free
+deb http://deb.grml.org/ grml-stable main
+deb-src http://deb.grml.org/ grml-stable main
+
+deb http://deb.grml.org/ grml-testing main
+deb-src http://deb.grml.org/ grml-testing main
+
+deb http://cdn.debian.net/debian $SUITE main contrib non-free
+deb-src http://cdn.debian.net/debian $SUITE main contrib non-free