diff --git a/src/main/ui/static/analysis/settle_tasks.js b/src/main/ui/static/analysis/settle_tasks.js
index 4b1fec13a..68f8e4629 100644
--- a/src/main/ui/static/analysis/settle_tasks.js
+++ b/src/main/ui/static/analysis/settle_tasks.js
@@ -225,7 +225,7 @@ define(['angular', 'uiBootstrap', 'uiRouter'], function (angular) {
         $scope.task = {}
         $scope.refreshClient = function () {
             if ($scope.task.client_moniker) {
-                $http.post('/sys/settle_tasks/merchants', {monikers: [$scope.task.client_moniker]}).then(function (resp) {
+                $http.post('/sys/settle_tasks/merchants', {monikers: $scope.task.client_moniker}).then(function (resp) {
                     let merchantsInfo = resp.data
                     if (merchantsInfo.length) {
                         $scope.chosenClient = merchantsInfo[0]