diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index ba125ed7e06a..e670cce0cb6e 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -5810,7 +5810,7 @@ static int hpsa_scsi_host_alloc(struct ctlr_info *h)
 {
 	struct Scsi_Host *sh;
 
-	sh = scsi_host_alloc(&hpsa_driver_template, sizeof(h));
+	sh = scsi_host_alloc(&hpsa_driver_template, sizeof(struct ctlr_info));
 	if (sh == NULL) {
 		dev_err(&h->pdev->dev, "scsi_host_alloc failed\n");
 		return -ENOMEM;