diff --git a/shutdown b/shutdown
index ab72979..a850e3d 100755
--- a/shutdown
+++ b/shutdown
@@ -2,11 +2,21 @@
 
 usage() { echo "Usage: shutdown <-p|-r>"; }
 
+_poweroff() {
+	echo 'Shutting down.'
+	init_signal=USR1
+}
+
+_reboot() {
+	echo 'Rebooting.'
+	init_signal='INT'
+}
+
 main() {
 	while [ "$1" ]; do
 		case "$1" in
-			-p|--poweroff) init_signal='10';;
-			-r|--reboot) init_signal='2';;
+			-p|--poweroff) _poweroff;;
+			-r|--reboot) _reboot;;
 
 			-h|--help|--usage) usage; return;;
 			*) usage; return 1
@@ -16,19 +26,16 @@ main() {
 
 	exe_name="${0##*/}"
 
-	[ "$init_signal" ] || {
+	if [ -z "$init_signal" ]; then
 		case "$exe_name" in
-			poweroff)
-				echo 'Shutting down.'
-				init_signal='USR1';;
-
+			poweroff) poff;;
 			reboot)
 				echo 'Rebooting.'
 				init_signal='INT';;
 
 			*) usage; return 1;;
 		esac
-	}
+	fi
 
 	kill -s "$init_signal" 1
 }