diff --git a/mozilla/webtools/doctor/Doctor.pm b/mozilla/webtools/doctor/Doctor.pm
index 685524bdd8f..e35c7e7c519 100644
--- a/mozilla/webtools/doctor/Doctor.pm
+++ b/mozilla/webtools/doctor/Doctor.pm
@@ -40,6 +40,7 @@ my $_cgi;
 sub cgi {
     my $class = shift;
     $_cgi ||= new CGI();
+    $_cgi->charset("UTF-8");
     return $_cgi;
 }