diff --git a/perlbrew b/perlbrew
index c600c9ca..0bac3a30 100755
--- a/perlbrew
+++ b/perlbrew
@@ -408,7 +408,7 @@ $fatpacked{"App/Perlbrew/Sys.pm"} = '#line '.(1+__LINE__).' "'.__FILE__."\"\n".<
   }
   
   sub arch {
-      (split(/-/, $Config{archname}, 2))[0]
+      (split(/-/, $Config{myarchname}, 2))[0]
   }
   
   1;