1 files changed, 6 insertions, 5 deletions
diff --git a/activesupport/lib/active_support/descendants_tracker.rb b/activesupport/lib/active_support/descendants_tracker.rb
index a4cee788b6..05236d3162 100644
--- a/activesupport/lib/active_support/descendants_tracker.rb
+++ b/activesupport/lib/active_support/descendants_tracker.rb
@@ -38,12 +38,13 @@ module ActiveSupport
       end
 
       private
-      def accumulate_descendants(klass, acc)
-        if direct_descendants = @@direct_descendants[klass]
-          acc.concat(direct_descendants)
-          direct_descendants.each { |direct_descendant| accumulate_descendants(direct_descendant, acc) }
+
+        def accumulate_descendants(klass, acc)
+          if direct_descendants = @@direct_descendants[klass]
+            acc.concat(direct_descendants)
+            direct_descendants.each { |direct_descendant| accumulate_descendants(direct_descendant, acc) }
+          end
         end
-      end
     end
 
     def inherited(base)