diff --git a/app/models/version.rb b/app/models/version.rb
old mode 100644
new mode 100755
index bc71b72..6f019c1
--- a/app/models/version.rb
+++ b/app/models/version.rb
@@ -89,6 +89,12 @@ class Version < ActiveRecord::Base
     @estimated_hours ||= fixed_issues.sum(:estimated_hours).to_f
   end
 
+  # Returns the total remaining time for this version
+  # (sum of leaves remaining_hours)
+  def remaining_hours
+    @remaining_hours ||= fixed_issues.sum(:remaining_hours).to_f
+  end
+
   # Returns the total reported time for this version
   def spent_hours
     @spent_hours ||= TimeEntry.joins(:issue).where("#{Issue.table_name}.fixed_version_id = ?", id).sum(:hours).to_f
diff --git a/app/views/versions/show.html.erb b/app/views/versions/show.html.erb
old mode 100644
new mode 100755
index 27e70aa..e3058f4
--- a/app/views/versions/show.html.erb
+++ b/app/views/versions/show.html.erb
@@ -19,6 +19,10 @@
     <th><%= l(:field_estimated_hours) %></th>
     <td class="total-hours"><%= html_hours(l_hours(@version.estimated_hours)) %></td>
 </tr>
+<tr>
+    <th><%= l(:field_remaining_hours) %></th>
+    <td class="total-hours"><%= html_hours(l_hours(@version.remaining_hours)) %></td>
+</tr>
 <% if User.current.allowed_to_view_all_time_entries?(@project) %>
 <tr>
     <th><%= l(:label_spent_time) %></th>
diff --git a/test/unit/version_test.rb b/test/unit/version_test.rb
old mode 100644
new mode 100755
index 56adc3c..db26aba
--- a/test/unit/version_test.rb
+++ b/test/unit/version_test.rb
@@ -177,30 +177,34 @@ class VersionTest < ActiveSupport::TestCase
     assert_equal false, version.behind_schedule?
   end
 
-  test "#estimated_hours should return 0 with no assigned issues" do
+  test "#estimated_hours and remaining_hours should return 0 with no assigned issues" do
     version = Version.generate!
     assert_equal 0, version.estimated_hours
+    assert_equal 0, version.remaining_hours
   end
 
-  test "#estimated_hours should return 0 with no estimated hours" do
+  test "#estimated_hours and remaining_hours should return 0 with no estimated hours" do
     version = Version.create!(:project_id => 1, :name => 'test')
     add_issue(version)
     assert_equal 0, version.estimated_hours
+    assert_equal 0, version.remaining_hours
   end
 
-  test "#estimated_hours should return return the sum of estimated hours" do
+  test "#estimated_hours and remaining_hours should return return the sum of estimated hours" do
     version = Version.create!(:project_id => 1, :name => 'test')
-    add_issue(version, :estimated_hours => 2.5)
-    add_issue(version, :estimated_hours => 5)
+    add_issue(version, :estimated_hours => 2.5, :remaining_hours => 1)
+    add_issue(version, :estimated_hours => 5, :remaining_hours => 3)
     assert_equal 7.5, version.estimated_hours
+    assert_equal 4, version.remaining_hours
   end
 
-  test "#estimated_hours should return the sum of leaves estimated hours" do
+  test "#estimated_hours and remaining_hours should return the sum of leaves estimated hours and remaining hours" do
     version = Version.create!(:project_id => 1, :name => 'test')
     parent = add_issue(version)
-    add_issue(version, :estimated_hours => 2.5, :parent_issue_id => parent.id)
-    add_issue(version, :estimated_hours => 5, :parent_issue_id => parent.id)
+    add_issue(version, :estimated_hours => 2.5, :remaining_hours => 1, :parent_issue_id => parent.id)
+    add_issue(version, :estimated_hours => 5, :remaining_hours => 3, :parent_issue_id => parent.id)
     assert_equal 7.5, version.estimated_hours
+    assert_equal 4, version.remaining_hours
   end
 
   test "should update all issue's fixed_version associations in case the hierarchy changed XXX" do