diff --git a/README.md b/README.md
index 4ab78d6..726aa32 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,7 @@ OR set local storage:
                     required arg: "<username>;<passwd>"
                     <username> for user
                     <password> for user
+                    [ID] for user
         -w "<workgroup>"       Configure the workgroup (domain) samba should use
                     required arg: "<workgroup>"
                     <workgroup> for samba
diff --git a/samba.sh b/samba.sh
index a65ec70..b909b41 100755
--- a/samba.sh
+++ b/samba.sh
@@ -88,9 +88,10 @@ timezone() { local timezone="${1:-EST5EDT}"
 # Arguments:
 #   name) for user
 #   password) for user
+#   id) for user
 # Return: user added to container
-user() { local name="${1}" passwd="${2}"
-    useradd "$name" -M
+user() { local name="${1}" passwd="${2}" id="${3:-""}"
+    useradd "$name" -M ${id:+-u $id}
     echo "$passwd" | tee - | smbpasswd -s -a "$name"
 }
 
@@ -130,6 +131,7 @@ Options (fields in '[]' are optional, '<>' are required):
                 required arg: \"<username>;<passwd>\"
                 <username> for user
                 <password> for user
+                [ID] for user
     -w \"<workgroup>\"       Configure the workgroup (domain) samba should use
                 required arg: \"<workgroup>\"
                 <workgroup> for samba