--- netsurf-3.11/tools/split-messages.pl.orig
+++ netsurf-3.11/tools/split-messages.pl
@@ -238,7 +238,7 @@
 
     if( $opt{gzip} )
     {
-        $ofh = new IO::Compress::Gzip( $ofh, AutoClose => 1, -Level => 9 );
+        $ofh = new IO::Compress::Gzip( $ofh, AutoClose => 1, -Level => 9, Time => 0 );
     }
 
     return $ofh;