1 files changed, 6 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb
index bc9b8dbfcf..28abdbd073 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb
@@ -13,9 +13,12 @@ module ActiveRecord
             :uuid
           end
 
-          def cast(value)
-            value.to_s[ACCEPTABLE_UUID, 0]
-          end
+          private
+
+            def cast_value(value)
+              casted = value.to_s
+              casted if casted.match?(ACCEPTABLE_UUID)
+            end
         end
       end
     end