diff --git a/sys/dev/sdhci/sdhci.c b/sys/dev/sdhci/sdhci.c
--- a/sys/dev/sdhci/sdhci.c
+++ b/sys/dev/sdhci/sdhci.c
@@ -2483,8 +2483,8 @@
 		goto fail;
 
 	mtx_init(&slot->sim_mtx, "sdhcisim", NULL, MTX_DEF);
-	slot->sim = cam_sim_alloc_dev(sdhci_cam_action, sdhci_cam_poll,
-	    "sdhci_slot", slot, slot->bus,
+	slot->sim = cam_sim_alloc(sdhci_cam_action, sdhci_cam_poll,
+	    "sdhci_slot", slot,
 	    &slot->sim_mtx, 1, 1, slot->devq);
 
 	if (slot->sim == NULL) {