diff --git a/drivers/pci/hotplug/rpaphp_slot.c b/drivers/pci/hotplug/rpaphp_slot.c
index 0e88154..daa89ae 100644
--- a/drivers/pci/hotplug/rpaphp_slot.c
+++ b/drivers/pci/hotplug/rpaphp_slot.c
@@ -27,6 +27,9 @@
 #include <linux/kobject.h>
 #include <linux/sysfs.h>
 #include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
 #include <asm/rtas.h>
 #include "rpaphp.h"