diff --git a/lib/validates_timeliness/base.rb b/lib/validates_timeliness/base.rb
index 2a76d7b..720f683 100644
--- a/lib/validates_timeliness/base.rb
+++ b/lib/validates_timeliness/base.rb
@@ -6,7 +6,8 @@ module ValidatesTimeliness
       time_array[0..2].join('-') + ' ' + time_array[3..5].join(':')
     end
   
-    # Overrides AR method to store multiparameter time and dates 
+    # Overrides AR method to store multiparameter time and dates as 
+    # ISO datetime string for later validation
     def execute_callstack_for_multiparameter_attributes(callstack)
       errors = []
       callstack.each do |name, values|
@@ -20,7 +21,7 @@ module ValidatesTimeliness
             else
               klass.new(*values)              
             end
-            send(name + "=", value)
+            send("#{name}=", value)
           rescue => ex
             errors << AttributeAssignmentError.new("error on assignment #{values.inspect} to #{name}", ex, name)
           end
diff --git a/spec/attribute_methods_spec.rb b/spec/attribute_methods_spec.rb
index 96ddb9b..4e1f8b4 100644
--- a/spec/attribute_methods_spec.rb
+++ b/spec/attribute_methods_spec.rb
@@ -2,6 +2,7 @@ require File.dirname(__FILE__) + '/spec_helper'
 
 describe ValidatesTimeliness::AttributeMethods do
   include ValidatesTimeliness::AttributeMethods
+  include ValidatesTimeliness::Validations
   
   before do
     @person = Person.new