diff --git a/app/models/user.rb b/app/models/user.rb
index 30d86f5d..2ae3083d 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -202,7 +202,8 @@ class User < Principal
       where(nil)
     else
       pattern = "%#{arg.to_s.strip.downcase}%"
-      where(" LOWER(concat(lastname, firstname)) LIKE :p ", :p => pattern)
+      #where(" LOWER(concat(lastname, firstname)) LIKE :p ", :p => pattern)
+      where(" LOWER(login) LIKE :p ", :p => pattern)
     end
   }