diff --git a/shell/bash/avt/README.md b/shell/bash/avt/README.md
index c1ce352..7ffac0e 100644
--- a/shell/bash/avt/README.md
+++ b/shell/bash/avt/README.md
@@ -13,7 +13,8 @@
     Record screen and audio in very high quality
     Usage: ./avt rec
     Enviroment variables:
-    rec_out: set output file (default: $HOME/Desktop/$(date +%F_%H-%M-%S).mkv)
+	rec_display: set x11 display (default: $DISPLAY)
+    rec_out: set output file (default: ~/Desktop/$(date +%F_%H-%M-%S).mkv)
     rec_fps: set framerate (default: 60)
     rec_res: set resolution (default: 1920x1080)
     rec_preset: set preset (default: ultrafast)
diff --git a/shell/bash/avt/avt b/shell/bash/avt/avt
index 915789f..d97fe80 100755
--- a/shell/bash/avt/avt
+++ b/shell/bash/avt/avt
@@ -41,7 +41,8 @@ $0 rec / record
 Record screen and audio in very high quality
 Usage: $0 rec
 Enviroment variables:
-rec_out: set output file (default: $HOME/Desktop/$(date +%F_%H-%M-%S).mkv)
+rec_display: set x11 display (default: \$DISPLAY)
+rec_out: set output file (default: ~/Desktop/$(date +%F_%H-%M-%S).mkv)
 rec_fps: set framerate (default: 60)
 rec_res: set resolution (default: 1920x1080)
 rec_preset: set preset (default: ultrafast)