--- xt/author/82_optional_modules.t
+++ xt/author/82_optional_modules.t
@@ -11,8 +11,6 @@
 use strict;
 use warnings;
 
-use Readonly; # So we don't barf when we hit Readonly::XS below.
-
 use lib 'inc';
 use Perl::Critic::BuildUtilities qw< recommended_module_versions >;
 
@@ -37,7 +35,10 @@
 plan tests => scalar keys %module_versions;
 
 foreach my $module (sort keys %module_versions) {
+    SKIP: {
+    skip 'Readonly::XS must only be used from Readonly itself', 1 if $module eq 'Readonly::XS';
     use_ok( $module, $module_versions{$module} );
+    }
 }
 
 # Local Variables: