diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index f981a882c54687ea72b98bdb7a2f545dd0a71144..0dc34e0d4cbc54ae0cfcac86b083ab081d2c9e9c 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -420,6 +420,7 @@ CONFIG_UNIPHIER_THERMAL=y
 CONFIG_WATCHDOG=y
 CONFIG_ARM_SP805_WATCHDOG=y
 CONFIG_S3C2410_WATCHDOG=y
+CONFIG_SUNXI_WATCHDOG=m
 CONFIG_IMX2_WDT=y
 CONFIG_MESON_GXBB_WATCHDOG=m
 CONFIG_MESON_WATCHDOG=m