diff --git a/core/include/reboot.h b/core/include/reboot.h
deleted file mode 100644
index 6a1f879a39..0000000000
--- a/core/include/reboot.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
- */
-
-/**
- * @addtogroup  core_internal
- * @{
- *
- * @file
- * @brief       Reboot function
- *
- * @author      Kaspar Schleiser <kaspar@schleiser.de>
- */
-
-#ifndef REBOOT_H_
-#define REBOOT_H_
-
-#include "periph/pm.h"
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-/**
- * @brief Immediately reboots the system.
- *
- * This function is used by core_panic() when the DEVELHELP macro is not defined.
- */
-static inline void reboot(void)
-{
-    pm_reboot();
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* REBOOT_H_ */
-/** @} */
diff --git a/sys/newlib/syscalls.c b/sys/newlib/syscalls.c
index 23da5ac55b..a90d54c0ba 100644
--- a/sys/newlib/syscalls.c
+++ b/sys/newlib/syscalls.c
@@ -36,9 +36,9 @@
 #include "board.h"
 #include "sched.h"
 #include "thread.h"
-#include "reboot.h"
 #include "irq.h"
 #include "log.h"
+#include "periph/pm.h"
 
 #include "uart_stdio.h"
 
@@ -82,8 +82,8 @@ __attribute__((used)) void _fini(void)
  */
 void _exit(int n)
 {
-    LOG_INFO("#! exit %i: resetting\n", n);
-    reboot();
+    LOG_INFO("#! exit %i: powering off\n", n);
+    pm_off();
     while(1);
 }
 
diff --git a/sys/shell/commands/sc_sys.c b/sys/shell/commands/sc_sys.c
index 1aa02b3ce2..f14d09392e 100644
--- a/sys/shell/commands/sc_sys.c
+++ b/sys/shell/commands/sc_sys.c
@@ -18,14 +18,14 @@
  * @}
  */
 
-#include "reboot.h"
+#include "periph/pm.h"
 
 int _reboot_handler(int argc, char **argv)
 {
     (void) argc;
     (void) argv;
 
-    reboot();
+    pm_reboot();
 
     return 0;
 }