diff --git a/railties/lib/rails/api/task.rb b/railties/lib/rails/api/task.rb
index 0aca943789..d6468c85f4 100644
--- a/railties/lib/rails/api/task.rb
+++ b/railties/lib/rails/api/task.rb
@@ -105,16 +105,17 @@ class Task < RDoc::Task
       }
 
       def initialize(name)
-        super
-
         # Every time rake runs this task is instantiated as all the rest.
         # Be lazy computing stuff to have as light impact as possible to
         # the rest of tasks.
         before_running_rdoc do
-          configure_sdoc
           configure_rdoc_files
           setup_horo_variables
         end
+
+        super do
+          configure_sdoc
+        end
       end
 
       # Hack, ignore the desc calls performed by the original initializer.