diff --git a/pkg/openthread/include/ot.h b/pkg/openthread/include/ot.h
index a9fd4bfa22..7513d0ea3d 100644
--- a/pkg/openthread/include/ot.h
+++ b/pkg/openthread/include/ot.h
@@ -146,13 +146,6 @@ void openthread_radio_init(netdev_t *dev, uint8_t *tb, uint8_t *rb);
  */
 int openthread_netdev_init(char *stack, int stacksize, char priority, const char *name, netdev_t *netdev);
 
-/**
- * @brief   get PID of OpenThread thread.
- *
- * @return  PID of OpenThread thread
- */
-kernel_pid_t openthread_get_pid(void);
-
 /**
  * @brief   Init OpenThread random
  */