diff --git a/scripts/web-add.sh b/scripts/web-add.sh
index 9c8c9d3..4160e7c 100755
--- a/scripts/web-add.sh
+++ b/scripts/web-add.sh
@@ -894,8 +894,8 @@ op_add() {
             validate_wwwdomain $in_wwwdomain || exit 1
             [ -z "$in_mail" ] && in_mail=$CONTACT_MAIL
             validate_mail $in_mail || exit 1
-            validate_phpversion $in_phpversion || exit 1
-            validate_quota $in_phpversion || exit 1
+            [ -n "$in_phpversion" ] && (validate_phpversion $in_phpversion || exit 1)
+            [ -n "$in_quota" ] && (validate_quota $in_quota || exit 1)
         fi
     fi