diff --git a/src/initscripts/system/network b/src/initscripts/system/network
index f334561de..a78473110 100644
--- a/src/initscripts/system/network
+++ b/src/initscripts/system/network
@@ -41,12 +41,15 @@ else
 fi
 
 while [ ! $# = 0 ]; do
-	for i in green red blue orange; do
-		if [ "${i}" == "${1}" ]; then
-			eval "${i}=1"
-			shift
-		fi
-	done
+	if network_zone_exists "${1}"; then
+		printf -v "${1}" '%s' '1'
+	else
+		boot_mesg "'${1}' is not a valid zone" ${FAILURE}
+		echo_failure
+		# Set ${DO} to something silly that we get an usage message
+		DO="error"
+	fi
+	shift
 done
 
 case "${DO}" in