diff --git a/app/views/common/_calendar.html.erb b/app/views/common/_calendar.html.erb
index dc1116c..74cf1d9 100644
--- a/app/views/common/_calendar.html.erb
+++ b/app/views/common/_calendar.html.erb
@@ -65,10 +65,12 @@
             <span class="day-value"><%= day.day %></span>
             <span class="abbr-day">(<%= abbr_day_name(day.cwday) %>)</span>
             
-            <%= link_to sprite_icon('add'),
-                        new_customer_appointment_path(start_date: day),
-                        class: 'icon-only icon-add',
-                        title: l(:label_appointment_new, default: 'New Appointment') %>
+            <% if day >= User.current.today %>
+              <%= link_to sprite_icon('add'),
+                          new_customer_appointment_path(start_date: day),
+                          class: 'icon-only icon-add',
+                          title: l(:label_appointment_new, default: 'New Appointment') %>
+            <% end %>
           </p>
 
           <%