diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c
index db3946e9c66bbdcb6f215a316521ebe785b1d381..216e1e948ff6dcc5823289300453ab3516b48072 100644
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -34,6 +34,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/acpi.h>
+#include <linux/slab.h>
 #include <linux/io.h>
 #include <linux/kref.h>
 #include <linux/rculist.h>
diff --git a/drivers/acpi/atomicio.c b/drivers/acpi/atomicio.c
index 814b192496166297d44903a08bbf0ddf86a2e453..8f8bd736d4ff11919656e79d2ef9442b037fafff 100644
--- a/drivers/acpi/atomicio.c
+++ b/drivers/acpi/atomicio.c
@@ -31,6 +31,7 @@
 #include <linux/kref.h>
 #include <linux/rculist.h>
 #include <linux/interrupt.h>
+#include <linux/slab.h>
 #include <acpi/atomicio.h>
 
 #define ACPI_PFX "ACPI: "