diff --git a/mozilla/tools/tinderbox/build-seamonkey-util.pl b/mozilla/tools/tinderbox/build-seamonkey-util.pl
index 4d0046ea1a7..0115e696f5a 100644
--- a/mozilla/tools/tinderbox/build-seamonkey-util.pl
+++ b/mozilla/tools/tinderbox/build-seamonkey-util.pl
@@ -18,7 +18,7 @@ use POSIX qw(sys_wait_h strftime);
 use Cwd;
 use File::Basename; # for basename();
 use Config; # for $Config{sig_name} and $Config{sig_num}
-$::UtilsVersion = '$Revision: 1.46 $ ';
+$::UtilsVersion = '$Revision: 1.47 $ ';
 
 package TinderUtils;
 
@@ -219,7 +219,7 @@ sub GetSystemInfo {
             $Settings::BuildName = "$host $Settings::OS/arm $os_ver $build_type";
         } elsif ($Settings::CPU eq 'ppc') {
             $Settings::BuildName = "$host $Settings::OS/$Settings::CPU $os_ver $build_type";
-        } elsif ($Settings::CPU eq 'i686') {
+        } elsif (($Settings::CPU eq 'i686') or ($Settings::CPU eq 'i586')) {
             $Settings::BuildName = "$host $Settings::OS $build_type";
         } else {
             # $Settings::BuildName set above