diff --git a/scripts/ynh-custom-builds b/scripts/ynh-custom-builds
index 22cbd2f..626cc66 100755
--- a/scripts/ynh-custom-builds
+++ b/scripts/ynh-custom-builds
@@ -43,7 +43,7 @@ function main()
 
 function validate_arguments()
 {
-    [[ $PACKAGE =~ ^metronome|miniupnpc|gevent-websocket$ ]] || critical "Invalid package $PACKAGE"
+    [[ $PACKAGE =~ ^metronome|miniupnpc|gevent-websocket|python-zeroconf$ ]] || critical "Invalid package $PACKAGE"
     #[[ $PACKAGE =~ ^metronome|rspamd|unscd|python-toml$ ]] || critical "Invalid package $PACKAGE" # (These are the old stuff for which we had custom builds in stretch)
     [[ $BRANCH =~ ^testing|stable|unstable$ ]] || critical "Invalid branch $BRANCH"
     [[ "$(tty)" != "not a tty" ]] || critical "You aint in a tty (are you in a 'lxc exec' ?) The script can't run because pbuilder won't be happy :|"
@@ -53,6 +53,11 @@ function validate_arguments()
 # Build recipe / tweaks #
 # ##################### #
 
+function tweak_python-zeroconf()
+{
+    readonly VERSION="$(dpkg-parsechangelog -S Version 2>/dev/null)+ynh$DISTRIB_N"
+}
+
 function tweak_miniupnpc()
 {
     readonly VERSION="$(dpkg-parsechangelog -S Version 2>/dev/null)+ynh$DISTRIB_N"