1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/type/binary.rb b/activerecord/lib/active_record/connection_adapters/type/binary.rb
index e0ea226216..4b2d1a66e0 100644
--- a/activerecord/lib/active_record/connection_adapters/type/binary.rb
+++ b/activerecord/lib/active_record/connection_adapters/type/binary.rb
@@ -9,6 +9,10 @@ module ActiveRecord
         def binary?
           true
         end
+
+        def klass
+          ::String
+        end
       end
     end
   end