diff --git a/livekitlib b/livekitlib
index e7ce812..c071950 100644
--- a/livekitlib
+++ b/livekitlib
@@ -500,6 +500,7 @@ change_root()
 
    # make sure important device files and directories are in union
    mkdir -p boot dev proc sys tmp mnt run
+   chmod 1777 tmp
    if [ ! -e dev/console ]; then mknod dev/console c 5 1; fi
    if [ ! -e dev/tty ]; then mknod dev/tty c 5 0; fi
    if [ ! -e dev/tty0 ]; then mknod dev/tty0 c 4 0; fi