diff --git a/script-user-add b/script-user-add
index 764062bd..ef6b1c74 100755
--- a/script-user-add
+++ b/script-user-add
@@ -40,10 +40,10 @@ if [[ -d /mnt/array/home-retired/$user ]]; then
 fi
 
 samba=0
-ask_ok "Enable shared file access for user $user?" && group_str="smbgrp," && samba=1
+ask_ok "Enable shared file access for user $user?" && group_str="smbgrp" && samba=1
 
 ask_ok "Make $user an admin?" && \
-    group_str+="wheel"
+    group_str+=",wheel"
 
 useradd_cmd+=("-G" "$group_str")
 useradd_cmd+=("$user")