diff --git a/lib/net/pop.rb b/lib/net/pop.rb
index af4948c..b207cf6 100644
--- a/lib/net/pop.rb
+++ b/lib/net/pop.rb
@@ -963,7 +963,7 @@ def dele(num)
     def uidl(num = nil)
       if num
         res = check_response(critical { get_response('UIDL %d', num) })
-        return res.split(/ /)[1]
+        return res.split(' ')[2]
       else
         critical {
           getok('UIDL')