diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index b28d90d..5478e57 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -823,6 +823,10 @@
 # cpu and is fixed in r0p1.
 CPU_FLAG_LIST += ERRATA_X4_2701112
 
+# Flag to apply erratum 2740089 workaround during powerdown. This erratum
+# applies to all revisions <= r0p1 of the Cortex-X4 cpu, it is fixed in r0p2.
+CPU_FLAG_LIST += ERRATA_X4_2740089
+
 # Flag to apply erratum 1922240 workaround during reset. This erratum applies
 # to revision r0p0 of the Cortex-A510 cpu and is fixed in r0p1.
 CPU_FLAG_LIST += ERRATA_A510_1922240