diff --git a/arch/arm/src/stm32/stm32_rtc.c b/arch/arm/src/stm32/stm32_rtc.c
index ec0afdc3562..17b61100840 100644
--- a/arch/arm/src/stm32/stm32_rtc.c
+++ b/arch/arm/src/stm32/stm32_rtc.c
@@ -59,7 +59,7 @@
 #include <nuttx/config.h>
 #include <nuttx/arch.h>
 #include <nuttx/irq.h>
-#include <nuttx/ptimer.h>
+#include <nuttx/rtc.h>
 #include <arch/board/board.h>
 
 #include <stdlib.h>