diff --git a/src/core/Exception.pm b/src/core/Exception.pm
index d1fdc7f62cf..18429affc0d 100644
--- a/src/core/Exception.pm
+++ b/src/core/Exception.pm
@@ -770,8 +770,7 @@ my class X::Undeclared::Symbols does X::Comp {
             'used at line' ~ (@lu == 1 ?? ' ' !! 's ') ~ @lu.join(', ')
         }
         sub s(@s) {
-            # XXX GLR this dies when trying to stringify, even though @s is just the List ("sec")
-            #"Did you mean '{ @s.join("', '") }'?";
+            "Did you mean '{ @s.join("', '") }'?";
         }
         my $r = "";
         if %.post_types {
diff --git a/src/core/List.pm b/src/core/List.pm
index 2f75a9b208d..2b2e0da7623 100644
--- a/src/core/List.pm
+++ b/src/core/List.pm
@@ -733,8 +733,10 @@ my class List does Iterable does Positional { # declared in BOOTSTRAP
         my int $n = nqp::elems($!reified);
         while $i < $n {
             $tmp := nqp::ifnull(nqp::atpos($!reified, $i), Any);
-            nqp::push_s($rsa,
-                nqp::unbox_s(nqp::istype($tmp, Str) && nqp::isconcrete($tmp) ?? $tmp !! $tmp.Str));
+            # Not sure why this works 
+            nqp::push_s($rsa, nqp::unbox_s(nqp::istype($tmp, Str) && nqp::isconcrete($tmp) ?? 
+                        $tmp !! 
+                        nqp::can($tmp, 'Str') ?? $tmp.Str !! nqp::box_s($tmp, Str) ));
             $i = $i + 1;
         }
         nqp::push_s($rsa, '...') if $infinite;