diff --git a/lib/auto_complete.rb b/lib/auto_complete.rb
index 4afc7c2..a0f7f71 100644
--- a/lib/auto_complete.rb
+++ b/lib/auto_complete.rb
@@ -33,6 +33,7 @@ module ClassMethods
     def auto_complete_for(object, method, options = {})
       define_method("auto_complete_for_#{object}_#{method}") do
         find_options = { 
+          :select => "DISTINCT(#{method})",
           :conditions => [ "LOWER(#{method}) LIKE ?", '%' + params[object][method].downcase + '%' ], 
           :order => "#{method} ASC",
           :limit => 10 }.merge!(options)
@@ -44,4 +45,4 @@ def auto_complete_for(object, method, options = {})
     end
   end
   
-end
\ No newline at end of file
+end