diff --git a/test/functional/gantts_controller_test.rb b/test/functional/gantts_controller_test.rb
index 0968ee64e..a7a7231f6 100644
--- a/test/functional/gantts_controller_test.rb
+++ b/test/functional/gantts_controller_test.rb
@@ -173,6 +173,7 @@ class GanttsControllerTest < Redmine::ControllerTest
         :show,
         :params => {
           :project_id => 1,
+          :zoom => 4,
           :format => 'png'
         }
       )