diff --git a/arch/arm/src/c5471/c5471_watchdog.c b/arch/arm/src/c5471/c5471_watchdog.c
index a77ed6d8b04..e09cfbdae9e 100644
--- a/arch/arm/src/c5471/c5471_watchdog.c
+++ b/arch/arm/src/c5471/c5471_watchdog.c
@@ -48,7 +48,7 @@
 
 #include <nuttx/fs/fs.h>
 #include <nuttx/irq.h>
-#include <nuttx/watchdog.h>
+#include <nuttx/timers/watchog.h>
 #include <arch/watchdog.h>
 
 #include "chip.h"
diff --git a/arch/arm/src/sam34/sam_rtt.c b/arch/arm/src/sam34/sam_rtt.c
index da223e211c7..9e0293fcb7d 100644
--- a/arch/arm/src/sam34/sam_rtt.c
+++ b/arch/arm/src/sam34/sam_rtt.c
@@ -46,7 +46,7 @@
 #include <stdint.h>
 #include <errno.h>
 #include <debug.h>
-#include <nuttx/timer.h>
+#include <nuttx/timers/timer.h>
 #include <arch/board/board.h>
 
 #include "up_arch.h"
diff --git a/arch/arm/src/sam34/sam_tc.c b/arch/arm/src/sam34/sam_tc.c
index 470c7c77cdb..9b55d9c5c67 100644
--- a/arch/arm/src/sam34/sam_tc.c
+++ b/arch/arm/src/sam34/sam_tc.c
@@ -47,7 +47,7 @@
 #include <errno.h>
 #include <debug.h>
 
-#include <nuttx/timer.h>
+#include <nuttx/timers/timer.h>
 #include <arch/board/board.h>
 
 #include "up_arch.h"
diff --git a/arch/arm/src/sam34/sam_wdt.c b/arch/arm/src/sam34/sam_wdt.c
index 7ed5d9dd5a7..f60b5866199 100644
--- a/arch/arm/src/sam34/sam_wdt.c
+++ b/arch/arm/src/sam34/sam_wdt.c
@@ -47,7 +47,7 @@
 #include <errno.h>
 #include <debug.h>
 
-#include <nuttx/watchdog.h>
+#include <nuttx/timers/watchog.h>
 #include <arch/board/board.h>
 
 #include "up_arch.h"
diff --git a/arch/arm/src/sama5/sam_wdt.c b/arch/arm/src/sama5/sam_wdt.c
index 706f8e8a39c..b04e132607b 100644
--- a/arch/arm/src/sama5/sam_wdt.c
+++ b/arch/arm/src/sama5/sam_wdt.c
@@ -44,7 +44,7 @@
 #include <errno.h>
 #include <debug.h>
 
-#include <nuttx/watchdog.h>
+#include <nuttx/timers/watchog.h>
 #include <arch/board/board.h>
 
 #include "up_arch.h"
diff --git a/arch/arm/src/stm32/stm32_iwdg.c b/arch/arm/src/stm32/stm32_iwdg.c
index ad5ae781932..a4e80b8dd26 100644
--- a/arch/arm/src/stm32/stm32_iwdg.c
+++ b/arch/arm/src/stm32/stm32_iwdg.c
@@ -45,7 +45,7 @@
 #include <debug.h>
 
 #include <nuttx/clock.h>
-#include <nuttx/watchdog.h>
+#include <nuttx/timers/watchog.h>
 #include <arch/board/board.h>
 
 #include "up_arch.h"
diff --git a/arch/arm/src/stm32/stm32_rtc.h b/arch/arm/src/stm32/stm32_rtc.h
index 19ea7621bd2..f873bd28f58 100644
--- a/arch/arm/src/stm32/stm32_rtc.h
+++ b/arch/arm/src/stm32/stm32_rtc.h
@@ -189,7 +189,7 @@ int stm32_rtc_cancelalarm(void);
  * Description:
  *   Instantiate the RTC lower half driver for the STM32.  General usage:
  *
- *     #include <nuttx/rtc.h>
+ *     #include <nuttx/timers/rtc.h>
  *     #include "stm32_rtc.h>
  *
  *     struct rtc_lowerhalf_s *lower;
diff --git a/arch/arm/src/stm32/stm32_rtc_lowerhalf.c b/arch/arm/src/stm32/stm32_rtc_lowerhalf.c
index ecc64f47a65..aff1575bef3 100644
--- a/arch/arm/src/stm32/stm32_rtc_lowerhalf.c
+++ b/arch/arm/src/stm32/stm32_rtc_lowerhalf.c
@@ -44,7 +44,7 @@
 #include <errno.h>
 
 #include <nuttx/arch.h>
-#include <nuttx/rtc.h>
+#include <nuttx/timers/rtc.h>
 
 #include "chip.h"
 #include "stm32_rtc.h"
@@ -265,7 +265,7 @@ static int stm32_settime(FAR struct rtc_lowerhalf_s *lower,
  * Description:
  *   Instantiate the RTC lower half driver for the STM32.  General usage:
  *
- *     #include <nuttx/rtc.h>
+ *     #include <nuttx/timers/rtc.h>
  *     #include "stm32_rtc.h>
  *
  *     struct rtc_lowerhalf_s *lower;
diff --git a/arch/arm/src/stm32/stm32_rtcounter.c b/arch/arm/src/stm32/stm32_rtcounter.c
index e27f5a54d6a..c5842f2afe6 100644
--- a/arch/arm/src/stm32/stm32_rtcounter.c
+++ b/arch/arm/src/stm32/stm32_rtcounter.c
@@ -61,7 +61,7 @@
 #include <nuttx/config.h>
 #include <nuttx/arch.h>
 #include <nuttx/irq.h>
-#include <nuttx/rtc.h>
+#include <nuttx/timers/rtc.h>
 #include <arch/board/board.h>
 
 #include <stdlib.h>
diff --git a/arch/arm/src/stm32/stm32_wwdg.c b/arch/arm/src/stm32/stm32_wwdg.c
index 2f5208aa300..3b056af6c46 100644
--- a/arch/arm/src/stm32/stm32_wwdg.c
+++ b/arch/arm/src/stm32/stm32_wwdg.c
@@ -44,7 +44,7 @@
 #include <errno.h>
 #include <debug.h>
 
-#include <nuttx/watchdog.h>
+#include <nuttx/timers/watchog.h>
 #include <arch/board/board.h>
 
 #include "up_arch.h"
diff --git a/arch/arm/src/tiva/tiva_timerlow32.c b/arch/arm/src/tiva/tiva_timerlow32.c
index a4226c62eb1..458ab8fa025 100644
--- a/arch/arm/src/tiva/tiva_timerlow32.c
+++ b/arch/arm/src/tiva/tiva_timerlow32.c
@@ -48,7 +48,7 @@
 #include <debug.h>
 
 #include <nuttx/kmalloc.h>
-#include <nuttx/timer.h>
+#include <nuttx/timers/timer.h>
 
 #include <arch/board/board.h>