diff --git a/external/config/kernel/linux-rockchip-rk356x-legacy.config b/external/config/kernel/linux-rockchip-rk356x-legacy.config
index 855ab4ef3ab9..18c42820dcd6 100644
--- a/external/config/kernel/linux-rockchip-rk356x-legacy.config
+++ b/external/config/kernel/linux-rockchip-rk356x-legacy.config
@@ -2850,7 +2850,7 @@ CONFIG_MT7601U=m
 # CONFIG_MT76x0U is not set
 # CONFIG_MT76x0E is not set
 # CONFIG_MT76x2E is not set
-# CONFIG_MT76x2U is not set
+CONFIG_MT76x2U=m
 # CONFIG_MT7603E is not set
 # CONFIG_MT7615E is not set
 # CONFIG_MT7663U is not set