diff --git a/test/fixtures/projects_trackers.yml b/test/fixtures/projects_trackers.yml
index cf454dca4..54443fa0b 100644
--- a/test/fixtures/projects_trackers.yml
+++ b/test/fixtures/projects_trackers.yml
@@ -44,3 +44,6 @@ projects_trackers_014:
 projects_trackers_015: 
   project_id: 6
   tracker_id: 1
+projects_trackers_016:
+  project_id: 3
+  tracker_id: 1
diff --git a/test/unit/project_test.rb b/test/unit/project_test.rb
index e2c25d8f9..7922b6e9a 100644
--- a/test/unit/project_test.rb
+++ b/test/unit/project_test.rb
@@ -467,6 +467,7 @@ class ProjectTest < ActiveSupport::TestCase
     parent = Project.find(1)
     parent.trackers = Tracker.find([1,2])
     child = parent.children.find(3)
+    child.trackers = Tracker.find([2,3])
 
     assert_equal [1, 2], parent.tracker_ids
     assert_equal [2, 3], child.trackers.collect(&:id)