diff --git a/lib/couchrest/mixins/validation.rb b/lib/couchrest/mixins/validation.rb
index 4b15c01..263b548 100644
--- a/lib/couchrest/mixins/validation.rb
+++ b/lib/couchrest/mixins/validation.rb
@@ -63,7 +63,9 @@ module CouchRest
           
           # share the validations with subclasses
           def self.inherited(subklass)
-            subklass.instance_variable_set(:@validations, self.validators.dup)
+            self.validators.contexts.each do |k, v|
+              subklass.validators.contexts[k] = v.dup
+            end
           end
       EOS
       
diff --git a/spec/couchrest/more/extended_doc_subclass_spec.rb b/spec/couchrest/more/extended_doc_subclass_spec.rb
index b2342b2..8cdede4 100644
--- a/spec/couchrest/more/extended_doc_subclass_spec.rb
+++ b/spec/couchrest/more/extended_doc_subclass_spec.rb
@@ -42,6 +42,12 @@ describe "Subclassing an ExtendedDocument" do
     validated_fields.should include(:job_title)
   end
   
+  it "should not add to the parent's validations" do
+    validated_fields = Card.validators.contexts[:default].map{|v| v.field_name}
+    validated_fields.should_not include(:extension_code)
+    validated_fields.should_not include(:job_title) 
+  end
+  
   it "should inherit default property values" do
     @card.bg_color.should == '#ccc'
   end