diff --git a/Shorewall-core/shorewallrc.archlinux b/Shorewall-core/shorewallrc.archlinux
index cc5d66dd5..bba822853 100644
--- a/Shorewall-core/shorewallrc.archlinux
+++ b/Shorewall-core/shorewallrc.archlinux
@@ -1,21 +1,21 @@
 #
-# Archlinux Shorewall 4.5 rc file
+# Arch Linux Shorewall 4.5 rc file
 #
-BUILD=archlinux
+BUILD=                                 #Default is to detect the build system
 HOST=archlinux
 PREFIX=/usr                            #Top-level directory for shared files, libraries, etc.
 SHAREDIR=${PREFIX}/share               #Directory for arch-neutral files.
 LIBEXECDIR=${PREFIX}/share             #Directory for executable scripts.
 PERLLIBDIR=${PREFIX}/share/shorewall   #Directory to install Shorewall Perl module directory
 CONFDIR=/etc                           #Directory where subsystem configurations are installed
-SBINDIR=/sbin                          #Directory where system administration programs are installed
+SBINDIR=/usr/sbin                      #Directory where system administration programs are installed
 MANDIR=${SHAREDIR}/man                 #Directory where manpages are installed.
-INITDIR=/etc/rc.d                      #Directory where SysV init scripts are installed.
-INITFILE=$PRODUCT                      #Name of the product's installed SysV init script
-INITSOURCE=init.sh                     #Name of the distributed file to be installed as the SysV init script
+INITDIR=                               #Directory where SysV init scripts are installed.
+INITFILE=                              #Name of the product's installed SysV init script
+INITSOURCE=                            #Name of the distributed file to be installed as the SysV init script
 ANNOTATED=                             #If non-zero, annotated configuration files are installed
 SYSCONFDIR=                            #Directory where SysV init parameter files are installed
-SYSTEMD=                               #Directory where .service files are installed (systems running systemd only)
+SYSTEMD=/usr/lib/systemd/system        #Directory where .service files are installed (systems running systemd only)
 SPARSE=                                #If non-empty, only install $PRODUCT/$PRODUCT.conf in $CONFDIR
 VARLIB=/var/lib                        #Directory where product variable data is stored.
 VARDIR=${VARLIB}/$PRODUCT              #Directory where product variable data is stored.