diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 95d43c4..71208a8 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -488,6 +488,11 @@
    Cortex-A510 CPU. This needs to be enabled only for revisions r0p0, r0p1 and
    r0p2, it is fixed in r0p3.
 
+-  ``ERRATA_A510_2041909``: This applies errata 2041909 workaround to
+   Cortex-A510 CPU. This needs to be enabled only for revision r0p2 and is fixed
+   in r0p3. The issue is also present in r0p0 and r0p1 but there is no
+   workaround for those revisions.
+
 DSU Errata Workarounds
 ----------------------