diff --git a/lib/XML/Generator.pm b/lib/XML/Generator.pm
index 808b703..6d4bfd3 100644
--- a/lib/XML/Generator.pm
+++ b/lib/XML/Generator.pm
@@ -804,7 +804,7 @@ sub _xmldecl {
   # use it to create a <!DOCTYPE ...> and to indicate that this
   # document can't stand alone.
   my $doctype = $this->xmldtd($this->{xml_header}{dtd} // $this->{dtd});
-  my $standalone = $doctype ? "no" : "yes";
+  my $standalone;# = $doctype ? "no" : "yes";

   for (my $i = 0; $i < $#args; $i += 2) {
          if ($args[$i] eq 'version'   ) {
@@ -818,6 +818,7 @@ sub _xmldecl {
     }
   }

+  $standalone = "no" if $doctype;;
   $version    =    qq{ version="$version"}    if defined    $version;
   $encoding   =   qq{ encoding="$encoding"}   if defined   $encoding;
   $standalone = qq{ standalone="$standalone"} if defined $standalone;