5 files changed, 5 insertions, 15 deletions
diff --git a/lib/arel/nodes.rb b/lib/arel/nodes.rb
index cbd10c31e0..442b313593 100644
--- a/lib/arel/nodes.rb
+++ b/lib/arel/nodes.rb
@@ -1,6 +1,5 @@
 # node
 require 'arel/nodes/node'
-require 'arel/nodes/lock'
 require 'arel/nodes/select_statement'
 require 'arel/nodes/select_core'
 require 'arel/nodes/insert_statement'
diff --git a/lib/arel/nodes/lock.rb b/lib/arel/nodes/lock.rb
deleted file mode 100644
index f4eaf125e0..0000000000
--- a/lib/arel/nodes/lock.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-module Arel
-  module Nodes
-    class Lock < Arel::Nodes::Node
-      attr_reader :locking
-      def initialize locking = true
-        @locking = locking
-      end
-    end
-  end
-end
diff --git a/lib/arel/nodes/unary.rb b/lib/arel/nodes/unary.rb
index e1576b9c99..1b1dcb1053 100644
--- a/lib/arel/nodes/unary.rb
+++ b/lib/arel/nodes/unary.rb
@@ -18,6 +18,7 @@ module Arel
       Offset
       On
       Top
+      Lock
     }.each do |name|
       const_set(name, Class.new(Unary))
     end
diff --git a/lib/arel/visitors/mysql.rb b/lib/arel/visitors/mysql.rb
index 8f9c3cc809..dad4d5e3b2 100644
--- a/lib/arel/visitors/mysql.rb
+++ b/lib/arel/visitors/mysql.rb
@@ -3,8 +3,8 @@ module Arel
     class MySQL < Arel::Visitors::ToSql
       private
       def visit_Arel_Nodes_Lock o
-        if o.locking.is_a?(String)
-          o.locking
+        if o.expr.is_a?(String)
+          o.expr
         else
           "FOR UPDATE"
         end
diff --git a/lib/arel/visitors/postgresql.rb b/lib/arel/visitors/postgresql.rb
index 45e7349fd3..68b483910e 100644
--- a/lib/arel/visitors/postgresql.rb
+++ b/lib/arel/visitors/postgresql.rb
@@ -3,8 +3,8 @@ module Arel
     class PostgreSQL < Arel::Visitors::ToSql
       private
       def visit_Arel_Nodes_Lock o
-        if o.locking.is_a?(String)
-          o.locking
+        if o.expr.is_a?(String)
+          o.expr
         else
           "FOR UPDATE"
         end