diff --git a/portradar.sh b/portradar.sh
index bdb3681..65fd3d3 100755
--- a/portradar.sh
+++ b/portradar.sh
@@ -203,7 +203,7 @@ while [ "$1" != "" ]; do
 		if [[ $1 =~ ^[0-9]+$ && $1 -le 65535 ]]; then
 			port=$1
 		elif [[ $1 =~ ^[0-9]+(,[0-9]+)+$ ]]; then
-			ports=$1
+			for p in ${1//,/ }; do [[ $p -gt 65535 ]] && help || ports=$1; done
 		else
 			help
 			exit