diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c
index a18b555f2..1dca0c013 100644
--- a/drivers/mci/mci-core.c
+++ b/drivers/mci/mci-core.c
@@ -1813,7 +1813,7 @@ void mci_of_parse(struct mci_host *host)
 		break;
 	default:
 		dev_err(host->hw_dev,
-			"Invalid \"bus-width\" value %ud!\n", bus_width);
+			"Invalid \"bus-width\" value %u!\n", bus_width);
 	}
 
 	/* f_max is obtained from the optional "max-frequency" property */