diff --git a/sys/arm64/conf/GENERIC-MORELLO b/sys/arm64/conf/GENERIC-MORELLO
index dcd888537b46..dbed1751fc36 100644
--- a/sys/arm64/conf/GENERIC-MORELLO
+++ b/sys/arm64/conf/GENERIC-MORELLO
@@ -42,3 +42,6 @@ nooptions 	PAC
 
 # Stores user and kernel pointers in uint64_t
 nodevice	netmap
+
+# Some devices, notably the GPU, aren't described in ACPI tables.
+envvar		kern.cfg.order="fdt"