diff --git a/bacnet-stack/ports/bdk-atxx4-mstp/watchdog.c b/bacnet-stack/ports/bdk-atxx4-mstp/watchdog.c
index 3ab8e29b..62eeb9f8 100644
--- a/bacnet-stack/ports/bdk-atxx4-mstp/watchdog.c
+++ b/bacnet-stack/ports/bdk-atxx4-mstp/watchdog.c
@@ -53,7 +53,7 @@ static inline void wdt_disable(
     __enable_interrupt();
 }
 
-static inline wdt_reset(
+static inline void wdt_reset(
     void)
 {
     __watchdog_reset();