diff --git a/edit-mode/function/reportActivity.js b/edit-mode/function/reportActivity.js
index 1bb7d5b..69e4d52 100644
--- a/edit-mode/function/reportActivity.js
+++ b/edit-mode/function/reportActivity.js
@@ -16,6 +16,7 @@ function resetFormAddRa() {
 
 function resetFormAddRaMaterial() {
     $("#id_ra_material").val("");
+    $("#select_ra_hr_material").empty().trigger('change');
     $('#form_report_activity_material').trigger("reset");
     $('#btn_add_ra_material').html('Add');
     $('#btn_add_ra_material').prop("disabled", false);