Handles when ClassMethods is used inside a class

1 files changed, 4 insertions, 2 deletions

diff --git a/rubocop/cop/prefer_class_methods_over_module.rb b/rubocop/cop/prefer_class_methods_over_module.rb
index ed10229b69a..5097dc7829d 100644
--- a/rubocop/cop/prefer_class_methods_over_module.rb
+++ b/rubocop/cop/prefer_class_methods_over_module.rb
@@ -48,7 +48,7 @@ module RuboCop
       private
 
       def extends_activesupport_concern?(node)
-        container_module = container_module_of(node.parent)
+        container_module = container_module_of(node)
         return false unless container_module
 
         container_module.descendants.any? do |descendant|
@@ -57,7 +57,9 @@ module RuboCop
       end
 
       def container_module_of(node)
-        node = node.parent until node.type == :module
+        while node = node.parent
+          break if node.type == :module
+        end
 
         node
       end