diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index b2d4b6c78b5c3b7d59280f0dba607ea030919800..a44a098dbb9c7aa20379bcb43c9010a1b5d7e3d7 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -5834,7 +5834,7 @@ 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;