diff --git a/boot/config-7B-800x480.txt b/boot/config-7B-800x480.txt
index 9760f4c..2b8342f 100644
--- a/boot/config-7B-800x480.txt
+++ b/boot/config-7B-800x480.txt
@@ -55,6 +55,7 @@ enable_uart=1
 # Enable audio (loads snd_bcm2835)
 dtparam=audio=on
 max_usb_current=1
+hdmi_drive=1
 hdmi_group=2
 hdmi_mode=1
 hdmi_mode=87