1 files changed, 2 insertions, 0 deletions
diff --git a/lib/PublicInbox/IMAP.pm b/lib/PublicInbox/IMAP.pm
index 1f65aa65..37317948 100644
--- a/lib/PublicInbox/IMAP.pm
+++ b/lib/PublicInbox/IMAP.pm
@@ -426,8 +426,10 @@ sub _esc ($) {
          if (!defined($v)) {
                  'NIL';
          } elsif ($v =~ /[{"\r\n%*\\\[]/) { # literal string
+                utf8::encode($v);
                  '{' . length($v) . "}\r\n" . $v;
          } else { # quoted string
+                utf8::encode($v);
                  qq{"$v"}
          }
  }