diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 40b2f4b..6f20e73 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -27,3 +27,4 @@
 obj-$(CONFIG_WDT_MPC8xx) += mpc8xx_wdt.o
 obj-$(CONFIG_WDT_MT7621) += mt7621_wdt.o
 obj-$(CONFIG_WDT_MTK) += mtk_wdt.o
+obj-$(CONFIG_WDT_SP805) += sp805_wdt.o