diff --git a/spec/integration/contest_managements_spec.rb b/spec/integration/contest_managements_spec.rb
--- a/spec/integration/contest_managements_spec.rb
+++ b/spec/integration/contest_managements_spec.rb
@@ -18,6 +18,7 @@
 
     set_contest_time_limit('3:00')
     set_indv_contest_mode
+    enable_multicontest
   end
 
   it "should reset users' timer when their contests change" do
@@ -42,6 +43,30 @@
     end
   end
 
+  it "should force users to log out when their contests change" do
+    james_session = open_session
+    james_session.extend(MainSessionMethods)
+
+    james_login_and_get_main_list(james_session)
+    james_session.response.should_not have_text(/OVER/)
+
+    Delorean.time_travel_to(190.minutes.since) do
+      james_session.get_main_list
+      james_session.response.should have_text(/OVER/)
+
+      admin_change_users_contest_to("james", @contest_b, true)
+
+      james_session.get '/main/list'
+      james_session.response.should_not render_template 'main/list'
+      james_session.should be_redirect
+
+      Delorean.time_travel_to(200.minutes.since) do
+        james_login_and_get_main_list(james_session)
+        james_session.response.should_not have_text(/OVER/)
+      end
+    end
+  end
+
   private
 
   module MainSessionMethods
@@ -54,6 +79,11 @@
       get '/main/list'
       assert_template 'main/list'
     end
+
+    def get_main_list_and_assert_logout
+      get '/main/list'
+      assert_redirected_to '/main'
+    end
   end
 
   module ContestManagementSessionMethods