diff --git a/lib/liquid/standardfilters.rb b/lib/liquid/standardfilters.rb
index 1b9ea6b..08d3c02 100644
--- a/lib/liquid/standardfilters.rb
+++ b/lib/liquid/standardfilters.rb
@@ -432,9 +432,7 @@ module Liquid
 
     private
 
-    def context
-      @context ||= nil
-    end
+    attr_reader :context
 
     def raise_property_error(property)
       raise Liquid::ArgumentError, "cannot select the property '#{property}'"