diff --git a/app/models/issue.rb b/app/models/issue.rb
index 507574de7..4396fa8a0 100644
--- a/app/models/issue.rb
+++ b/app/models/issue.rb
@@ -1360,6 +1360,7 @@ class Issue < ActiveRecord::Base
     s << ' child' if child?
     s << ' parent' unless leaf?
     s << ' private' if is_private?
+    s << ' behind-schedule' if behind_schedule?
     if user.logged?
       s << ' created-by-me' if author_id == user.id
       s << ' assigned-to-me' if assigned_to_id == user.id
diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
index 58f413964..e288526ee 100644
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -234,6 +234,7 @@ table.list td.buttons img, div.buttons img {vertical-align:middle;}
 table.list td.reorder {width:15%; white-space:nowrap; text-align:center; }
 table.list table.progress td {padding-right:0px;}
 table.list caption { text-align: left; padding: 0.5em 0.5em 0.5em 0; }
+table.list tr.behind-schedule td.due_date { color: #f66914; }
 table.list tr.overdue td.due_date  { color: #c22; }
 #role-permissions-trackers table.list th {white-space:normal;}
 
@@ -504,6 +505,7 @@ div.issue .attributes {margin-top: 2em;}
 div.issue .attributes .attribute {padding-left:180px; clear:left; min-height: 1.8em;}
 div.issue .attributes .attribute .label {width: 170px; margin-left:-180px; font-weight:bold; float:left;  overflow:hidden; text-overflow: ellipsis;}
 div.issue .attribute .value {overflow:auto; text-overflow: ellipsis;}
+div.issue.behind-schedule .due-date .value { color: #f66b14; }
 div.issue.overdue .due-date .value { color: #c22; }
 
 #issue_tree table.issues, #relations table.issues { border: 0; }
diff --git a/test/unit/issue_test.rb b/test/unit/issue_test.rb
index c05e1152f..91138766b 100644
--- a/test/unit/issue_test.rb
+++ b/test/unit/issue_test.rb
@@ -2950,6 +2950,11 @@ class IssueTest < ActiveSupport::TestCase
     assert_include 'assigned-to-me', issue2.css_classes(user)
   end
 
+  def test_css_classes_behind_schedule
+    assert_include 'behind-schedule', Issue.find(1).css_classes.split(' ')
+    assert_not_include 'behind-schedule', Issue.find(2).css_classes.split(' ')
+  end
+
   def test_save_attachments_with_hash_should_save_attachments_in_keys_order
     set_tmp_attachments_directory
     issue = Issue.generate!