diff --git a/lib/deja/node.rb b/lib/deja/node.rb
index c4106af..6f55b25 100644
--- a/lib/deja/node.rb
+++ b/lib/deja/node.rb
@@ -8,19 +8,19 @@ class << self
       attr_reader :relationship_names
 
       def relationship(name, opts = {})
-        raise StandardError, "'as' alias must be specified" unless opts.is_a? Hash and opts[:as]
+        raise StandardError, "'out' or 'in' aliases must be specified" unless opts.is_a? Hash and (opts[:out] or opts[:in])
         @relationship_names ||= {}
         if opts[:reverse] then
           @relationship_names[name] = {
-            :out_singular => opts[:as].to_s.singularize,
-            :out_plural   => opts[:as].to_s.pluralize,
-            :in_singular  => opts[:reverse].to_s.singularize,
-            :in_plural    => opts[:reverse].to_s.pluralize
+            :out_singular => opts[:out].to_s.singularize,
+            :out_plural   => opts[:out].to_s.pluralize,
+            :in_singular  => opts[:in].to_s.singularize,
+            :in_plural    => opts[:in].to_s.pluralize
           }
         else
           @relationship_names[name] = {
-            :out_singular => opts[:as].to_s.singularize,
-            :out_plural   => opts[:as].to_s.pluralize
+            :out_singular => opts[:out].to_s.singularize,
+            :out_plural   => opts[:out].to_s.pluralize
           }
         end
         attr_writer name
diff --git a/spec/factories.rb b/spec/factories.rb
index a6fbe1c..594fe8d 100644
--- a/spec/factories.rb
+++ b/spec/factories.rb
@@ -5,7 +5,7 @@ class Company < Deja::Node
   attribute :permalink, String, :index => true
   attribute :type, String
 
-  relationship :invested_in, :as => :investment, :reverse => :investor
+  relationship :invested_in, :out => :investment, :in => :investor
 end
 
 class Person < Deja::Node
@@ -13,9 +13,9 @@ class Person < Deja::Node
   attribute :permalink, String, :index => true
   attribute :type, String
 
-  relationship :invested_in, :as => :investment
-  relationship :friends_with, :as => :friends
-  relationship :has_hate, :as => :hates
+  relationship :invested_in, :out => :investment
+  relationship :friends_with, :out => :friends
+  relationship :has_hate, :out => :hates
 end