diff --git a/app/views/gantts/show.html.erb b/app/views/gantts/show.html.erb
index d90bca4..2a1933e 100755
--- a/app/views/gantts/show.html.erb
+++ b/app/views/gantts/show.html.erb
@@ -308,12 +308,12 @@
 <table style="width:100%">
 <tr>
   <td align="left">
-    <%= link_to_content_update("\xc2\xab " + l(:label_previous),
-                               params.merge(@gantt.params_previous)) %>
+    <%= link_to("\xc2\xab " + l(:label_previous),
+                {:params => params.merge(@gantt.params_previous)}) %>
   </td>
   <td align="right">
-    <%= link_to_content_update(l(:label_next) + " \xc2\xbb",
-                               params.merge(@gantt.params_next)) %>
+    <%= link_to(l(:label_next) + " \xc2\xbb",
+                {:params => params.merge(@gantt.params_next)}) %>
   </td>
 </tr>
 </table>