1 files changed, 1 insertions, 0 deletions
diff --git a/t/lib/b.t b/t/lib/b.t
index 6303d624ed..fca7f4724f 100755
--- a/t/lib/b.t
+++ b/t/lib/b.t
@@ -126,6 +126,7 @@ ok;
 
 chomp($a = `$^X "-I../lib" "-MB::Stash" "-Mwarnings" -e1`);
 $a = join ',', sort split /,/, $a;
+$a =~ s/-uperlio(?:::\w+)?,//g if $Config{'useperlio'} eq 'define';
 $a =~ s/-uWin32,// if $^O eq 'MSWin32';
 $a =~ s/-u(Cwd|File|File::Copy|OS2),//g if $^O eq 'os2';
 $a =~ s/-uCwd,// if $^O eq 'cygwin';