diff --git a/script/conllu2korapxml b/script/conllu2korapxml
index 53cdeca..910ced3 100755
--- a/script/conllu2korapxml
+++ b/script/conllu2korapxml
@@ -203,11 +203,11 @@
   my ($fname) = @_;
   if (defined $zip) {
     $zip->newStream(Zip64 => 1, TextFlag => 1, Method => $_COMPRESSION_METHOD,
-        Append            => 1, Name => $fname)
+        Append            => 1, Name => $fname, ExtAttr =>  0100666 << 16)
         or die "ERROR ('$fname'): zip failed: $ZipError\n";
   } else {
     $zip = new IO::Compress::Zip $outh, Zip64 => 1, TextFlag => 1,
-        Method => $_COMPRESSION_METHOD, Append => 0, Name => "$fname"
+        Method => $_COMPRESSION_METHOD, Append => 0, Name => "$fname", ExtAttr =>  0100666 << 16
         or die "ERROR ('$fname'): zip failed: $ZipError\n";
   }
 }
diff --git a/t/test.t b/t/test.t
index 52ac9d0..53b7006 100644
--- a/t/test.t
+++ b/t/test.t
@@ -1,6 +1,6 @@
 use strict;
 use warnings;
-use Test::More tests => 61;
+use Test::More tests => 62;
 use Test::Script;
 use Test::TempDir::Tiny;
 use File::Copy;
@@ -191,9 +191,10 @@
 print $fh $zipcontent;
 close($fh);
 
-$zipcontent = `$UNZIP -l $zipfile`;
+$zipcontent = `$UNZIP -Z $zipfile`;
 like($zipcontent, qr@GOE/AGA/00000/ud/morpho\.xml@, "conllu2korapxml UDPipe input conversion contains morpho layer with foundry name 'ud'");
 like($zipcontent, qr@GOE/AGA/00000/ud/dependency\.xml@, "conllu2korapxml UDPipe input conversion contains dependency layer with foundry name 'ud'");
+like($zipcontent, qr@rw-rw-rw-.*GOE/AGA/00000/ud/morpho\.xml@, "KorAP-XML zip contents have read and write permissions");
 
 script_runs([ 'script/conllu2korapxml', 't/data/deu-deps.conllu' ], "Runs conllu2korap with UDPipe input");
 script_stderr_unlike "fileparse(): need a valid pathname", "Ignore sent_id and newdoc id";