diff --git a/libexec/portzap/setup/setup-doas b/libexec/portzap/setup/setup-doas
index c8db1a4..0dd0e82 100644
--- a/libexec/portzap/setup/setup-doas
+++ b/libexec/portzap/setup/setup-doas
@@ -4,25 +4,20 @@ set -e
 ##
 # variables
 localbase=$(realpath "$(dirname "$0")"/../../..)
-libexec="${localbase}/libexec/portzap"
-sharedir="${localbase}/share/portzap"
+libexec="${localbase}"/libexec/portzap
+sharedir="${localbase}"/share/portzap
 
 ##
 # functions
 . "${libexec}"/functions/print.sh
 
-install_doasconf()
-{
-    src="${sharedir}/doas.conf"
-    dest="${localbase}/etc/doas.conf"
-    if grep -Fq "$(cat "${src}")" "${dest}"; then
-        printok "doas.conf is up to date"
-    else
-        cat "${src}" >> "${dest}"
-        printok "${dest} updated"
-    fi
-}
-
 ##
 # main
-install_doasconf
+src="${sharedir}"/doas.conf
+dest="${localbase}"/etc/doas.conf
+if grep -Fq "$(cat "${src}")" "${dest}"; then
+    printok "doas.conf is up to date"
+else
+    cat "${src}" >> "${dest}"
+    printok "${dest} updated"
+fi