diff --git a/tcms/testcases/static/testcases/js/search.js b/tcms/testcases/static/testcases/js/search.js
index 6805825d53..e9cbb50a60 100644
--- a/tcms/testcases/static/testcases/js/search.js
+++ b/tcms/testcases/static/testcases/js/search.js
@@ -106,7 +106,7 @@ export function pageTestcasesSearchReadyHandler () {
             };
 
             if ($('#id_run').val()) {
-                params.executions__run__in = $('#id_run').val()
+                params.executions__run__in = [$('#id_run').val()]
             };
 
             const testPlanIds = selectedPlanIds()