diff --git a/app/models/report/chainable.rb b/app/models/report/chainable.rb
index 3b0f469779..4b9a9f900e 100644
--- a/app/models/report/chainable.rb
+++ b/app/models/report/chainable.rb
@@ -1,5 +1,5 @@
-# Proviedes convinience layer and logic shared between GroupBy::Base and Filter::Base.
-# Implements a dubble linked list (FIXME: is that the correct term?).
+# Provides convinience layer and logic shared between GroupBy::Base and Filter::Base.
+# Implements a double linked list (FIXME: is that the correct term?).
 class Report < ActiveRecord::Base
   class Chainable
     include Enumerable
@@ -72,7 +72,7 @@ class Report < ActiveRecord::Base
       engine.chain_initializer.push block
     end
 
-    inherited_attribute :label
+    inherited_attribute :label, :default => :translation_needed
     inherited_attribute :properties, :list => true
 
     class << self
@@ -293,4 +293,4 @@ class Report < ActiveRecord::Base
     end
 
   end
-end
\ No newline at end of file
+end
diff --git a/app/models/report/group_by/singleton_value.rb b/app/models/report/group_by/singleton_value.rb
index 61ac1f5103..197b9fcf80 100644
--- a/app/models/report/group_by/singleton_value.rb
+++ b/app/models/report/group_by/singleton_value.rb
@@ -1,5 +1,10 @@
 class Report::GroupBy
   class SingletonValue < Base
     dont_display!
+
+    def define_group(sql)
+      sql.select "1 as singleton_value"
+      sql.group_by "singleton_value"
+    end
   end
 end