diff --git a/src/rule_add/prog.c b/src/rule_add/prog.c
index fd63b0e..2e8d389 100644
--- a/src/rule_add/prog.c
+++ b/src/rule_add/prog.c
@@ -39,8 +39,6 @@ int main(int argc, char *argv[])
     cli.tos = -1;
 
     cli.tcp_enabled = -1;
-    cli.tcp_sport = -1;
-    cli.tcp_dport = -1;
     cli.tcp_urg = -1;
     cli.tcp_ack = -1;
     cli.tcp_rst = -1;
@@ -51,8 +49,6 @@ int main(int argc, char *argv[])
     cli.tcp_cwr = -1;
 
     cli.udp_enabled = -1;
-    cli.udp_sport = -1;
-    cli.udp_dport = -1;
 
     cli.icmp_enabled = -1;
     cli.icmp_code = -1;
@@ -267,12 +263,12 @@ int main(int argc, char *argv[])
             new_filter.tcp.enabled = cli.tcp_enabled;
         }
 
-        if (cli.tcp_sport > -1)
+        if (cli.tcp_sport)
         {
             new_filter.tcp.sport = cli.tcp_sport;
         }
 
-        if (cli.tcp_dport > -1)
+        if (cli.tcp_dport)
         {
             new_filter.tcp.dport = cli.tcp_dport;
         }
@@ -322,12 +318,12 @@ int main(int argc, char *argv[])
             new_filter.udp.enabled = cli.udp_enabled;
         }
 
-        if (cli.udp_sport > -1)
+        if (cli.udp_sport)
         {
             new_filter.udp.sport = cli.udp_sport;
         }
 
-        if (cli.udp_dport > -1)
+        if (cli.udp_dport)
         {
             new_filter.udp.dport = cli.udp_dport;
         }
diff --git a/src/rule_add/utils/cli.c b/src/rule_add/utils/cli.c
index c22160f..636995f 100644
--- a/src/rule_add/utils/cli.c
+++ b/src/rule_add/utils/cli.c
@@ -185,12 +185,12 @@ void parse_cli(cli_t* cli, int argc, char* argv[])
                 break;
 
             case 12:
-                cli->tcp_sport = atoi(optarg);
+                cli->tcp_sport = optarg;
 
                 break;
 
             case 13:
-                cli->tcp_dport = atoi(optarg);
+                cli->tcp_dport = optarg;
 
                 break;
 
@@ -240,12 +240,12 @@ void parse_cli(cli_t* cli, int argc, char* argv[])
                 break;
 
             case 23:
-                cli->udp_sport = atoi(optarg);
+                cli->udp_sport = optarg;
 
                 break;
 
             case 24:
-                cli->udp_dport = atoi(optarg);
+                cli->udp_dport = optarg;
 
                 break;
 
diff --git a/src/rule_add/utils/cli.h b/src/rule_add/utils/cli.h
index 5be753f..f2eecf5 100644
--- a/src/rule_add/utils/cli.h
+++ b/src/rule_add/utils/cli.h
@@ -46,8 +46,8 @@ struct cli
     int tos;
 
     int tcp_enabled;
-    int tcp_sport;
-    int tcp_dport;
+    char* tcp_sport;
+    char* tcp_dport;
     int tcp_urg;
     int tcp_ack;
     int tcp_rst;
@@ -58,8 +58,8 @@ struct cli
     int tcp_cwr;
 
     int udp_enabled;
-    int udp_sport;
-    int udp_dport;
+    char* udp_sport;
+    char* udp_dport;
 
     int icmp_enabled;
     int icmp_code;