diff --git a/drivers/s390/net/ism_drv.c b/drivers/s390/net/ism_drv.c
index 7cfc4f986297..e3c1e0acf294 100644
--- a/drivers/s390/net/ism_drv.c
+++ b/drivers/s390/net/ism_drv.c
@@ -615,7 +615,7 @@ static int ism_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	ism->dev.parent = &pdev->dev;
 	ism->dev.release = ism_dev_release;
 	device_initialize(&ism->dev);
-	dev_set_name(&ism->dev, dev_name(&pdev->dev));
+	dev_set_name(&ism->dev, "%s", dev_name(&pdev->dev));
 	ret = device_add(&ism->dev);
 	if (ret)
 		goto err_dev;