diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 3370e6faeae0..c15186390693 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -47,6 +47,7 @@
  * Power off function, if any
  */
 void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
 
 void
 cpu_idle(void)
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index 89a28cc018c9..113bd48a89bd 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -54,6 +54,7 @@ void (*pm_idle)(void);
  * handler when auxio is not present-- unused for now...
  */
 void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
 
 /*
  * sysctl - toggle power-off restriction for serial console