diff --git a/tests/bin/nc b/tests/bin/nc
index d74e918..40a24fb 100755
--- a/tests/bin/nc
+++ b/tests/bin/nc
@@ -6,11 +6,17 @@ local_port=1024
 case "$input" in
 	-*) echo "nc: bad input: \$input" >&2; exit 1;;
 esac
-while [ ! -z $1 ]; do
-	case $1 in
+while [ ! -z "$1" ]; do
+	case "$1" in
 		-w) shift 2;;
-		-p) local_port=$2; shift 2;;
-		*) if [ -z $host ]; then host=$1; elif [ -z $port ]; then port=$1; fi; shift 1;;
+		-p) local_port="$2"; shift 2;;
+		*)	if [ -z "$host" ]; then
+				host="$1"
+			elif [ -z "$port" ]; then
+				port="$1";
+			fi
+			shift 1
+			;;
 	esac
 done