diff --git a/project/templates/event_date/list.html b/project/templates/event_date/list.html
index f15ba92..815dab5 100644
--- a/project/templates/event_date/list.html
+++ b/project/templates/event_date/list.html
@@ -126,7 +126,9 @@
         var result_list = $("#result_list");
         result_list.empty();
 
-        var req_data = $("#filter_form :input[value!='']").serialize();
+        var req_data = $("#filter_form :input").filter(function () {
+            return this.value.length > 0
+        }).serialize()
         req_data += '&page=' + page + '&per_page=' + per_page;
 
         $.ajax({