1 files changed, 4 insertions, 0 deletions
diff --git a/lib/arel/visitors/mysql.rb b/lib/arel/visitors/mysql.rb
index afffd37f9b..143b4d36f4 100644
--- a/lib/arel/visitors/mysql.rb
+++ b/lib/arel/visitors/mysql.rb
@@ -2,6 +2,10 @@ module Arel
   module Visitors
     class MySQL < Arel::Visitors::ToSql
       private
+      def visit_Arel_Nodes_Lock o
+        "FOR UPDATE"
+      end
+
       ###
       # :'(
       # http://dev.mysql.com/doc/refman/5.0/en/select.html#id3482214