Set Rules-Requires-Root: no

debian/control

@@ -3,6 +3,7 @@ Priority: optional
 Maintainer: Luca Boccassi <bluca@debian.org>
 Build-Depends: debhelper (>= 9), cmake, libusb-1.0-0-dev, libgtk-3-dev
 Standards-Version: 4.1.3
+Rules-Requires-Root: no
 Section: electronics
 Homepage: https://github.com/texane/stlink
 Vcs-Git: https://github.com/bluca/stlink.git -b debian