diff --git a/tpl/part/vote_table_date.tpl b/tpl/part/vote_table_date.tpl
index 7bd6781..029e11f 100644
--- a/tpl/part/vote_table_date.tpl
+++ b/tpl/part/vote_table_date.tpl
@@ -17,7 +17,7 @@
                     {foreach $slots as $slot}
                         {foreach $slot->moments as $id=>$moment}
                             <td headers="M{$slot@key} D{$headersDCount} H{$headersDCount}">
-                                <a href="{poll_url id=$admin_poll_id admin=true action='delete_column' action_value=$slot->day|cat:'@'|cat:$moment}"
+                                <a href="{poll_url id=$admin_poll_id admin=true action='delete_column' action_value=$slot->day|cat:'@'|cat:urlencode($moment)}"
                                    class="btn btn-link btn-sm"
                                    title="{__('adminstuds', 'Remove the column')} {$slot->day|date_format:$date_format.txt_short|html} - {$moment|html}">
                                     <i class="glyphicon glyphicon-remove text-danger"></i><span class="sr-only">{__('Generic', 'Remove')}</span>