diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index fd7b15b..9c73dbd 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -17,6 +17,7 @@
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/pci.h>
 #include <linux/blkdev.h>