diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 5d4b615fe6..11fc41225d 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -52,13 +52,13 @@ config PM_GOVERNOR_EXPLICIT_RELAX
 		can hold off power levels using pm_stay() (via boardctl).
 
 		This option will initialize all run levels as if
-		pm_stay/pm_stay_timeout() were to be called once for each.
+		pm_stay/pm_staytimeout() were to be called once for each.
 
 		if set to -1, that means pm_stay(), so that your application
 		needs to call pm_relax() (via boardctl()) for every run-level you
 		wish to allow to enter.
 
-		if set to timeout (unit: ms), that means pm_stay_timeout(ms).
+		if set to timeout (unit: ms), that means pm_staytimeout(ms).
 		pm_relax() will be auto called after timeout.
 
 if PM_GOVERNOR_ACTIVITY
diff --git a/drivers/power/pm_activity.c b/drivers/power/pm_activity.c
index f965327084..a50e7ecf0b 100644
--- a/drivers/power/pm_activity.c
+++ b/drivers/power/pm_activity.c
@@ -185,7 +185,7 @@ void pm_relax(int domain, enum pm_state_e state)
 }
 
 /****************************************************************************
- * Name: pm_stay_timeout
+ * Name: pm_staytimeout
  *
  * Description:
  *   This function is called by a device driver to indicate that it is
@@ -206,7 +206,7 @@ void pm_relax(int domain, enum pm_state_e state)
  *
  ****************************************************************************/
 
-void pm_stay_timeout(int domain, enum pm_state_e state, int ms)
+void pm_staytimeout(int domain, enum pm_state_e state, int ms)
 {
   FAR struct pm_domain_s *pdom;
   FAR struct wdog_s *wdog;
diff --git a/drivers/power/pm_governor.c b/drivers/power/pm_governor.c
index 590bd371f8..04adc8f677 100644
--- a/drivers/power/pm_governor.c
+++ b/drivers/power/pm_governor.c
@@ -101,7 +101,7 @@ int pm_set_governor(int domain, FAR const struct pm_governor_s *gov)
 #if CONFIG_PM_GOVERNOR_EXPLICIT_RELAX < 0
           pm_stay(dom, state);
 #else
-          pm_stay_timeout(dom, state, CONFIG_PM_GOVERNOR_EXPLICIT_RELAX);
+          pm_staytimeout(dom, state, CONFIG_PM_GOVERNOR_EXPLICIT_RELAX);
 #endif
         }
     }
diff --git a/include/nuttx/power/pm.h b/include/nuttx/power/pm.h
index 97021df7e9..0aabc36d46 100644
--- a/include/nuttx/power/pm.h
+++ b/include/nuttx/power/pm.h
@@ -500,7 +500,7 @@ void pm_stay(int domain, enum pm_state_e state);
 void pm_relax(int domain, enum pm_state_e state);
 
 /****************************************************************************
- * Name: pm_stay_timeout
+ * Name: pm_staytimeout
  *
  * Description:
  *   This function is called by a device driver to indicate that it is
@@ -521,7 +521,7 @@ void pm_relax(int domain, enum pm_state_e state);
  *
  ****************************************************************************/
 
-void pm_stay_timeout(int domain, enum pm_state_e state, int ms);
+void pm_staytimeout(int domain, enum pm_state_e state, int ms);
 
 /****************************************************************************
  * Name: pm_staycount