diff --git a/lib/xcake/core_ext/class.rb b/lib/xcake/core_ext/class.rb
index 3634996f..076f0129 100644
--- a/lib/xcake/core_ext/class.rb
+++ b/lib/xcake/core_ext/class.rb
@@ -7,7 +7,7 @@ module ClassDescendants
       # Returns all descendants of a class
       #
       def descendants
-        ObjectSpace.each_object(singleton_class).select { |klass| klass < self }
+        ObjectSpace.each_object(singleton_class).select { |klass| klass < self }.sort_by(&:to_s)
       end
     end
   end