diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 09e52ba47ddf..ffc4193e9505 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -499,7 +499,6 @@ static int isd200_action( struct us_data *us, int action,
 	memset(&ata, 0, sizeof(ata));
 	srb->cmnd = info->cmnd;
 	srb->device = &srb_dev;
-	++srb->serial_number;
 
 	ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
 	ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;