diff --git a/modules/counter/tpl/index.html b/modules/counter/tpl/index.html
index fbd86b64d..04884cbc7 100644
--- a/modules/counter/tpl/index.html
+++ b/modules/counter/tpl/index.html
@@ -18,7 +18,7 @@
 <form action="./index.php" method="get" name="calendar" id="fo_calendar" style="margin-bottom:30px">
     <input type="hidden" name="module" value="{$module}" />
     <input type="hidden" name="act" value="{$act}" />
-    <input type="hidden" name="selected_date" id="selected_date" value="{zDate('Ymd',$selected_date)}" />
+    <input type="hidden" name="selected_date" id="selected_date" value="{zdate($selected_date,'Ymd')}" />
 
 	<table class="x_table x_table-striped x_table-hover">
 		<thead>