diff --git a/calendar/templates/default/month_column.tpl b/calendar/templates/default/month_column.tpl
index 95aae80dad..7461fbceaa 100755
--- a/calendar/templates/default/month_column.tpl
+++ b/calendar/templates/default/month_column.tpl
@@ -1,5 +1,5 @@
 <!-- $Id$   month_column -->
-  <td valign="top" height="75" colspan=1 width="{col_width}%"{extra}>
+  <td valign="top" height="75" colspan="1" width="{col_width}%"{extra}>
 {column_data}
   </td>