diff --git a/src/ec/kontron/kempld/kempld.c b/src/ec/kontron/kempld/kempld.c
index 19c18804c2..b87238b649 100644
--- a/src/ec/kontron/kempld/kempld.c
+++ b/src/ec/kontron/kempld/kempld.c
@@ -95,11 +95,13 @@ static void kempld_enable_dev(struct device *const dev)
 				dev->ops = &kempld_uart_ops;
 				break;
 			}
+			/* Fall through. */
 		case 1:
 			if (dev->path.generic.subid == 0) {
 				kempld_i2c_device_init(dev);
 				break;
 			}
+			/* Fall through. */
 		default:
 			printk(BIOS_WARNING,
 			       "KEMPLD: Spurious device %s.\n",