diff --git a/os/hal/ports/TIVA/TM4C129x/platform.mk b/os/hal/ports/TIVA/TM4C129x/platform.mk
index 6f0c0df3..b8363f37 100644
--- a/os/hal/ports/TIVA/TM4C129x/platform.mk
+++ b/os/hal/ports/TIVA/TM4C129x/platform.mk
@@ -5,7 +5,8 @@ PLATFORMSRC = ${CHIBIOS}/os/hal/ports/common/ARMCMx/nvic.c \
               ${CHIBIOS_CONTRIB}/os/hal/ports/TIVA/LLD/hal_pal_lld.c \
               ${CHIBIOS_CONTRIB}/os/hal/ports/TIVA/LLD/hal_serial_lld.c \
               ${CHIBIOS_CONTRIB}/os/hal/ports/TIVA/LLD/hal_mac_lld.c \
-              ${CHIBIOS_CONTRIB}/os/hal/ports/TIVA/LLD/hal_ext_lld.c
+              ${CHIBIOS_CONTRIB}/os/hal/ports/TIVA/LLD/hal_ext_lld.c \
+              ${CHIBIOS_CONTRIB}/os/hal/ports/TIVA/LLD/hal_wdg_lld.c
 
 # Required include directories
 PLATFORMINC = ${CHIBIOS}/os/hal/ports/common/ARMCMx \