diff --git a/application/basilisk/confvars.sh b/application/basilisk/confvars.sh
index da12a03d0b..c34429d632 100644
--- a/application/basilisk/confvars.sh
+++ b/application/basilisk/confvars.sh
@@ -58,6 +58,7 @@ MOZ_SERVICES_SYNC=1
 MOZ_SERVICES_HEALTHREPORT=
 MOZ_SAFE_BROWSING=
 MOZ_GAMEPAD=1
+MOZ_AV1=1
 # Disable checking that add-ons are signed by the trusted root
 MOZ_ADDON_SIGNING=0
 MOZ_REQUIRE_SIGNING=0