diff --git a/src/rp2_common/hardware_watchdog/include/hardware/watchdog.h b/src/rp2_common/hardware_watchdog/include/hardware/watchdog.h
index 747838b..7ce89ff 100644
--- a/src/rp2_common/hardware_watchdog/include/hardware/watchdog.h
+++ b/src/rp2_common/hardware_watchdog/include/hardware/watchdog.h
@@ -97,7 +97,7 @@ bool watchdog_caused_reboot(void);
  * This would not be present if a watchdog reset is initiated by \ref watchdog_reboot or by the RP2040 bootrom
  * (e.g. dragging a UF2 onto the RPI-RP2 drive).
  *
- * @return true If the watchdog timer or a watchdog force caused (see \reg watchdog_caused_reboot) the last reboot
+ * @return true If the watchdog timer or a watchdog force caused (see \ref watchdog_caused_reboot) the last reboot
  *              and the watchdog reboot happened after \ref watchdog_enable was called
  * @return false If there has been no watchdog reboot since the last power on reset, or the watchdog reboot was not caused
  *               by a watchdog timeout after \ref watchdog_enable was called.