diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1
index 064e72136c..6553a8631a 100644
--- a/DOCS/man/en/mplayer.1
+++ b/DOCS/man/en/mplayer.1
@@ -3544,6 +3544,9 @@ Mac OS X CoreVideo video output driver
 .RSs
 .IPs device_id=<number>
 Choose the display device to use in fullscreen.
+.IPs shared_buffer
+Write output to a shared memory buffer instead of displaying it and 
+try to open an existing NSConnection for communication with a GUI.
 .RE
 .PD 1
 .