diff --git a/app/controllers/seminars_controller.rb b/app/controllers/seminars_controller.rb
index 7b3e36f..dc35ed0 100644
--- a/app/controllers/seminars_controller.rb
+++ b/app/controllers/seminars_controller.rb
@@ -334,6 +334,7 @@ class SeminarsController < ApplicationController
     seminar_url = (@prefix_url ? @prefix_url : OrbitHelper.url_to_show(seminar.to_param))
     if !registration_is_open
       sign_up = t('seminar.sign_up_not_open')
+      sign_up_not_yet = true
     elsif sign_up_not_yet
       sign_up = t('seminar.sign_up_not_yet')
     elsif sign_up_overdue
@@ -360,7 +361,7 @@ class SeminarsController < ApplicationController
       'sign_up' => sign_up,
       'contribute_action' => contribute_action,
       'time_now' => time_now,
-      'sign_up_overdue' => sign_up_overdue, 
+      'sign_up_not_yet' => sign_up_not_yet, 
       'contribute_time_range' => SeminarMain.time_range(seminar.contribute_start_date, seminar.contribute_end_date),
       'sign_up_time_range' => SeminarMain.time_range(seminar.signup_start_date, seminar.signup_end_date),
       'seminar_time_range' => SeminarMain.time_range(seminar.seminar_start_date, seminar.seminar_end_date)
diff --git a/app/views/seminars/show_data.html.erb b/app/views/seminars/show_data.html.erb
index 3a2cd30..13fea7c 100644
--- a/app/views/seminars/show_data.html.erb
+++ b/app/views/seminars/show_data.html.erb
@@ -10,7 +10,7 @@
   @seminar_time_range = data["seminar_time_range"]
   @contribute_time_range = data["contribute_time_range"]
   @contribute_action = data["contribute_action"]
-  @sign_up_overdue = data["sign_up_overdue"]
+  @sign_up_not_yet = data["sign_up_not_yet"]
 %>
 
 
@@ -50,7 +50,7 @@
       <td class="seminarive-title-value"><%= @contribute_time_range %></td>
     </tr>
     <% end %>
-    <tr <%= 'class="hidden"'.html_safe if @sign_up_overdue && @contribute_action.blank? %>>
+    <tr <%= 'class="hidden"'.html_safe if @sign_up_not_yet && @contribute_action.blank? %>>
       <th class="seminarive-title-field"><%= t('seminar.signup') %></th>
       <td class="seminarive-title-value"><%= @sign_up %><br /><%= @contribute_action %></td>
     </tr>