diff --git a/stand/kboot/main.c b/stand/kboot/main.c
--- a/stand/kboot/main.c
+++ b/stand/kboot/main.c
@@ -168,7 +168,7 @@
 			return((vm_offset_t)strtoull(walker + 7, NULL, 0));
 		if (strncmp("ACPI=", walker, 5) == 0)
 			return((vm_offset_t)strtoull(walker + 5, NULL, 0));
-		walker += strcspn(walker, "\n");
+		walker += strcspn(walker, "\n") + 1;
 	}
 	return (0);
 }