diff --git a/libvirt/tests/cfg/security/rng/libvirt_rng.cfg b/libvirt/tests/cfg/security/rng/libvirt_rng.cfg
index b3654e6bbb..98907f2f49 100644
--- a/libvirt/tests/cfg/security/rng/libvirt_rng.cfg
+++ b/libvirt/tests/cfg/security/rng/libvirt_rng.cfg
@@ -7,7 +7,7 @@
         set_virtio_current = yes
     # Devices that might be present though not configured via <rng>.
     # For example, devices that are provided by the CPU.
-    ignored_devices = s390-trng,trng,tpm-rng-0
+    ignored_devices = s390-trng,trng,tpm-rng-0,smccc_trng
     dd_throughput = "bs=512 count=10"
     snap_options = " %s"
     variants: