diff --git a/module/ssh.module.sh b/module/ssh.module.sh
index e0d4cfa..f6dd11f 100755
--- a/module/ssh.module.sh
+++ b/module/ssh.module.sh
@@ -11,7 +11,7 @@ source /cis/core/base.module.sh
 # There are limitations of characters which are allowed to build the command. So try to express the task in a simple way.
 function ssh.onHostRun() {
     local _REMOTE_HOST _COMMAND
-    base.set _REMOTE_HOST "${1:?"FQDN of server missing: e.g. host.example.net[:port]"}" '^([a-zA-Z0-9][a-zA-Z0-9@.-]*)+(:[0-9]+)?$'
+    base.set _REMOTE_HOST "${1:?"FQDN of server missing: e.g. host.example.net[:port]"}" "${REGEX[SSH_ADDRESS]}"
     base.set _COMMAND "${2:?"COMMAND missing"}" "${REGEX[COMMAND]}"
 
     local _REMOTE_USER _REMOTE_HOSTNAME_FQDN _REMOTE_PORT _SOCKET