diff --git a/target/linux/rb532/config-2.6.22 b/target/linux/rb532/config-2.6.22
index e6805dd728..65d7ba3b50 100644
--- a/target/linux/rb532/config-2.6.22
+++ b/target/linux/rb532/config-2.6.22
@@ -142,6 +142,7 @@ CONFIG_PAGE_SIZE_4KB=y
 # CONFIG_PNPACPI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
+CONFIG_RC32434_WDT=y
 # CONFIG_RTC is not set
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y