diff --git a/lib/mongoid_spacial/contexts/mongo.rb b/lib/mongoid_spacial/contexts/mongo.rb
index c098157..c253fb4 100644
--- a/lib/mongoid_spacial/contexts/mongo.rb
+++ b/lib/mongoid_spacial/contexts/mongo.rb
@@ -100,6 +100,10 @@ def create_geo_near_query(center,opts)
           query['maxDistance'] = opts[:max_distance].to_f
           query['maxDistance'] = query['maxDistance']/opts[:unit].to_f if opts[:unit]
         end
+        
+        if opts[:unique_docs]
+	        query['uniqueDocs'] = true
+        end
 
         if klass.db.connection.server_version >= '1.7'
           query['spherical']  = true if opts[:spherical]