diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c
index faee586516a5..491d9484df1b 100644
--- a/drivers/firewire/fw-sbp2.c
+++ b/drivers/firewire/fw-sbp2.c
@@ -36,6 +36,7 @@
 #include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
 #include <linux/blkdev.h>
+#include <linux/string.h>
 #include <linux/timer.h>
 
 #include <scsi/scsi.h>