diff --git a/app/models/project.rb b/app/models/project.rb
index 8e4bd78e1..f40bcb603 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -225,12 +225,12 @@ class Project < ActiveRecord::Base
     end
   end
   
-  # Returns an array of the trackers used by the project and its sub projects
+  # Returns an array of the trackers used by the project and its active sub projects
   def rolled_up_trackers
     @rolled_up_trackers ||=
       Tracker.find(:all, :include => :projects,
                          :select => "DISTINCT #{Tracker.table_name}.*",
-                         :conditions => ["#{Project.table_name}.lft >= ? AND #{Project.table_name}.rgt <= ?", lft, rgt],
+                         :conditions => ["#{Project.table_name}.lft >= ? AND #{Project.table_name}.rgt <= ? AND #{Project.table_name}.status = #{STATUS_ACTIVE}", lft, rgt],
                          :order => "#{Tracker.table_name}.position")
   end
   
diff --git a/test/unit/project_test.rb b/test/unit/project_test.rb
index 6a143fae9..94177f433 100644
--- a/test/unit/project_test.rb
+++ b/test/unit/project_test.rb
@@ -198,6 +198,16 @@ class ProjectTest < Test::Unit::TestCase
     assert_equal [2, 3], child.rolled_up_trackers.collect(&:id)
   end
   
+  def test_rolled_up_trackers_should_ignore_archived_subprojects
+    parent = Project.find(1)
+    parent.trackers = Tracker.find([1,2])
+    child = parent.children.find(3)
+    child.trackers = Tracker.find([1,3])
+    parent.children.each(&:archive)
+    
+    assert_equal [1,2], parent.rolled_up_trackers.collect(&:id)
+  end
+  
   def test_next_identifier
     ProjectCustomField.delete_all
     Project.create!(:name => 'last', :identifier => 'p2008040')