diff --git a/command_nmap.conf b/command_nmap.conf
index 6ad584d..7fec90f 100644
--- a/command_nmap.conf
+++ b/command_nmap.conf
@@ -19,6 +19,14 @@ object CheckCommand "nmap" {
 			description = "String with ports in nmap format"
 			repeat_key = true
 		}
+		"--ipv4" = {
+			value = "$nmap_ipv4$"
+			description = "Use IPv4 for scanning"
+		}
+		"--ipv6" = {
+			value = "$nmap_ipv6$"
+			description = "Use IPv6 for scanning"
+		}
 	}
 
 	vars.nmap_host = "$check_address$"