diff --git a/app/assets/javascripts/app/views/ticket_zoom/sidebar_article_attachment.jst.eco b/app/assets/javascripts/app/views/ticket_zoom/sidebar_article_attachment.jst.eco
index f08429406..7a0ba5748 100644
--- a/app/assets/javascripts/app/views/ticket_zoom/sidebar_article_attachment.jst.eco
+++ b/app/assets/javascripts/app/views/ticket_zoom/sidebar_article_attachment.jst.eco
@@ -5,7 +5,7 @@
       <div class="attachment-icon">
       <% if attachment.preferences && attachment.preferences['Content-Type'] && @ContentTypeIcon(attachment.preferences['Content-Type']): %>
         <% if @canPreview(attachment.preferences['Content-Type']): %>
-          <img src="<%= App.Config.get('api_path') %>/ticket_attachment/<%= @article.ticket_id %>/<%= @article.id %>/<%= attachment.id %>">
+          <img src="<%= App.Config.get('api_path') %>/ticket_attachment/<%= @article.ticket_id %>/<%= @article.id %>/<%= attachment.id %>?view=preview">
         <% else: %>
           <%- @Icon( @ContentTypeIcon(attachment.preferences['Content-Type']) ) %>
         <% end %>