diff --git a/www-api/app/Models/ResultFormatter.php b/www-api/app/Models/ResultFormatter.php
index 435bb08d..9b7c5667 100644
--- a/www-api/app/Models/ResultFormatter.php
+++ b/www-api/app/Models/ResultFormatter.php
@@ -331,6 +331,7 @@ class ResultFormatter extends Model
                     "total_record" => ($total - 1),
                     "internal_return" => $out["internal_return"],
                     "result_list" => array(),
+                    "categories" => dummyCategory(),
                 );
                 for ($i = 0; $i < $total; $i++) {
                     $key = sprintf("%05d", $i);
diff --git a/www-api/public/svs/user/formarter.php b/www-api/public/svs/user/formarter.php
index b41951af..cd386e3a 100755
--- a/www-api/public/svs/user/formarter.php
+++ b/www-api/public/svs/user/formarter.php
@@ -370,6 +370,7 @@ function processOutJson($in, $out) {
                 "total_record" => ($total - 1),
                 "internal_return" => $out["internal_return"],
                 "result_list" => array(),
+                "categories" => dummyCategory(),
             );
             for ($i = 0; $i < $total; $i++) {
                 $key = sprintf("%05d", $i);