diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 33cf988..c65af02 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -24,6 +24,7 @@
 
 #include <linux/scatterlist.h>
 #include <linux/blkdev.h>
+#include <linux/slab.h>
 
 #include "sas_internal.h"