diff --git a/S02-builtin_data_types/hash.t b/S02-builtin_data_types/hash.t
index 52fc7ddf70..54400dfca0 100644
--- a/S02-builtin_data_types/hash.t
+++ b/S02-builtin_data_types/hash.t
@@ -2,7 +2,7 @@ use v6;
 
 use Test;
 
-plan 74;
+plan 76;
 
 # basic lvalue assignment
 # L<S09/Hashes>
@@ -250,6 +250,15 @@ lives_ok { Hash.new("a" => "b") }, 'Hash.new($pair) lives';
     is %h{*}.join('|'), %h.values.join('|'), '{*} zen slice';
 }
 
+# RT #75868
+{
+    my %h = (ab => 'x', 'a' => 'y');
+    'abc' ~~ /^(.)./;
+    is %h{$/}, 'x', 'can use $/ as hash key';
+    is %h{$0}, 'y', 'can use $0 as hash key';
+
+}
+
 done_testing;
 
 # vim: ft=perl6