diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 08b6ba1..7075ca6 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -447,6 +447,10 @@
    CPU. This needs to be enabled for revisions r0p0, r1p0, and r2p0 of the CPU,
    it is still open.
 
+-  ``ERRATA_X2_2058056``: This applies errata 2058056 workaround to Cortex-X2
+   CPU. This needs to be enabled for revisions r0p0, r1p0, and r2p0 of the CPU,
+   it is still open.
+
 -  ``ERRATA_X2_2083908``: This applies errata 2083908 workaround to Cortex-X2
    CPU. This needs to be enabled for revision r2p0 of the CPU, it is still open.