--- /dev/null
+#!perl -T
+
+use strict;
+use warnings;
+
+use Test::More tests => 1;
+
+use B::RecDeparse;
+use B::Deparse;
+
+sub wut { "\x{1c}B::RecDeparse\x{1c}"->() }
+
+my $bd = B::Deparse->new();
+my $code = $bd->coderef2text(\&wut);
+like $code, qr/B::RecDeparse/, 'single_delim is only fooled when called from B::RecDeparse';