diff --git a/app/models/member_profile.rb b/app/models/member_profile.rb
index 4f313c9..2e9a6fa 100644
--- a/app/models/member_profile.rb
+++ b/app/models/member_profile.rb
@@ -1,6 +1,7 @@
 class MemberProfile
   include Mongoid::Document
   include Mongoid::Timestamps
+  include Mongoid::Attributes::Dynamic
   include Mongoid::Tree
   include Mongoid::Tree::Ordering
 
diff --git a/app/models/member_profile_field_value.rb b/app/models/member_profile_field_value.rb
index d98d0cb..32324c2 100644
--- a/app/models/member_profile_field_value.rb
+++ b/app/models/member_profile_field_value.rb
@@ -1,6 +1,7 @@
 class MemberProfileFieldValue
   include Mongoid::Document
   include Mongoid::Timestamps
+  include Mongoid::Attributes::Dynamic
   include AttributeValuesHelper
 
   field :key