diff --git a/sys/dev/nvme/nvme_sim.c b/sys/dev/nvme/nvme_sim.c
--- a/sys/dev/nvme/nvme_sim.c
+++ b/sys/dev/nvme/nvme_sim.c
@@ -203,7 +203,7 @@
 		cpi->xport_specific.nvme.slot = pci_get_slot(dev);
 		cpi->xport_specific.nvme.function = pci_get_function(dev);
 		cpi->xport_specific.nvme.extra = 0;
-		strncpy(cpi->xport_specific.nvme.dev_name, device_get_nameunit(dev),
+		strlcpy(cpi->xport_specific.nvme.dev_name, device_get_nameunit(dev),
 		    sizeof(cpi->xport_specific.nvme.dev_name));
 		cpi->hba_vendor = pci_get_vendor(dev);
 		cpi->hba_device = pci_get_device(dev);