diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 721c399..f4d32c9 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -535,6 +535,10 @@
 -  ``ERRATA_N2_2280757``: This applies errata 2280757 workaround to Neoverse-N2
    CPU. This needs to be enabled for revision r0p0 of the CPU and is still open.
 
+-  ``ERRATA_N2_2326639``: This applies errata 2326639 workaround to Neoverse-N2
+   CPU. This needs to be enabled for revision r0p0 of the CPU, it is fixed in
+   r0p1.
+
 -  ``ERRATA_N2_2376738``: This applies errata 2376738 workaround to Neoverse-N2
    CPU. This needs to be enabled for revision r0p0 of the CPU, it is fixed in
    r0p1.