diff --git a/include/TheThingsNetwork.h b/include/TheThingsNetwork.h
index 2452344..4ba0431 100644
--- a/include/TheThingsNetwork.h
+++ b/include/TheThingsNetwork.h
@@ -675,7 +675,7 @@ class TheThingsNetwork
      * It neither clears the provisioned keys nor the configured pins
      * but they will be lost if the device is powered off.
      * 
-     * Before calling this function, use @ref ttn_busy_duration() to check
+     * Before calling this function, use @ref busyDuration() to check
      * that the TTN device is idle and ready to be powered off.
      *
      * To restart communication, @ref resumeAfterPowerOff(int) must be called.
diff --git a/include/ttn.h b/include/ttn.h
index ca36586..8ca50f2 100644
--- a/include/ttn.h
+++ b/include/ttn.h
@@ -601,7 +601,7 @@ extern "C"
      * duration between power-off and next power-on can be used instead.
      * 
      * If the device has access to the real time, set the system time (using `settimeofday()`)
-     * before calling this function (and before @ref join()) and pass 0 for `off_duration`.
+     * before calling this function (and before @ref ttn_join()) and pass 0 for `off_duration`.
      * 
      * Before this function is called, `nvs_flash_init()` must have been called once.
      *