diff --git a/app/views/admin/ad_images/_form.html.erb b/app/views/admin/ad_images/_form.html.erb
index 76665e6..c1d7eab 100644
--- a/app/views/admin/ad_images/_form.html.erb
+++ b/app/views/admin/ad_images/_form.html.erb
@@ -77,7 +77,7 @@
       <div class="control-group">
         <label class="control-label muted"><%= t(:start_date) %></label>
         <div class="controls">
-          <%= f.datetime_picker :postdate, :no_label => true %>
+          <%= f.datetime_picker :postdate, :no_label => true, :new_record => @ad_image.new_record? %>
         </div>
       </div>
 
@@ -85,7 +85,7 @@
       <div class="control-group">
         <label class="control-label muted"><%= t(:end_date) %></label>
         <div class="controls">
-          <%= f.datetime_picker :deadline, :no_label => true %>
+          <%= f.datetime_picker :deadline, :no_label => true, :new_record => @ad_image.new_record? %>
         </div>
       </div>