diff --git a/config/boards/radxa-rock-4d.conf b/config/boards/radxa-rock-4d.conf
index d14405509f..5e8d3d9611 100644
--- a/config/boards/radxa-rock-4d.conf
+++ b/config/boards/radxa-rock-4d.conf
@@ -12,6 +12,8 @@ BOOT_SCENARIO="spl-blobs"
 BOOT_SUPPORT_SPI="yes"
 BOOT_SPI_RKSPI_LOADER="yes"
 IMAGE_PARTITION_TABLE="gpt"
+enable_extension "radxa-aic8800"
+AIC8800_TYPE="usb"
 
 function post_family_tweaks__rock-4d_naming_audios() {
 	display_alert "$BOARD" "Renaming Rock-4D audios" "info"