diff --git a/core/rfb.js b/core/rfb.js
index 669c817e..f40c7d78 100644
--- a/core/rfb.js
+++ b/core/rfb.js
@@ -62,7 +62,8 @@ export default function RFB(defaults) {
         ['JPEG_quality_med',      -26 ],
         //['JPEG_quality_hi',     -23 ],
         //['compress_lo',        -255 ],
-        ['compress_hi',          -247 ],
+        ['compress_hi',          -254 ],
+        //['compress_max',       -247 ],
 
         ['DesktopSize',          -223 ],
         ['last_rect',            -224 ],