diff --git a/activerecord/lib/active_record/scoping/named.rb b/activerecord/lib/active_record/scoping/named.rb
index 5395bd6076506b9804d63b636faf8a76031c88f2..e69c4ab657361f095fbb6b2179e06bc5d634c1ad 100644
--- a/activerecord/lib/active_record/scoping/named.rb
+++ b/activerecord/lib/active_record/scoping/named.rb
@@ -174,7 +174,7 @@ def scope(name, body, &block)
       protected
 
         def valid_scope_name?(name)
-          if respond_to?(name, true)
+          if respond_to?(name, true) && logger
             logger.warn "Creating scope :#{name}. " \
                         "Overwriting existing method #{self.name}.#{name}."
           end