1 files changed, 7 insertions, 0 deletions

diff --git a/src/man/firejail.txt b/src/man/firejail.txt
index a5d3623b6..c05c8e201 100644
--- a/src/man/firejail.txt
+++ b/src/man/firejail.txt
@@ -1673,6 +1673,13 @@ Example:
 $ firejail \-\-x11=xephyr --net=eth0 openbox
 
 .TP
+\fB\-\-x11=block
+Blacklist /tmp/.X11-unix directory, ${HOME}/.Xauthority and file specified in ${XAUTHORITY} enviroment variable.
+Remove DISPLAY and XAUTHORITY enviroment variables.
+Stop with error message if X11 abstract socket will be accessible in jail.
+.br
+
+.TP
 \fB\-\-zsh
 Use /usr/bin/zsh as default user shell.
 .br