diff --git a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.accept_keywords b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.accept_keywords
index bb1402adc8..8c943c42a0 100644
--- a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.accept_keywords
+++ b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.accept_keywords
@@ -36,6 +36,9 @@
 # The only available ebuild (from GURU) has ~amd64 and no keyword for arm64 yet.
 =dev-libs/jose-12 **
 
+# Keep versions on both arches in sync.
+=dev-libs/libxml2-2.13.7 ~arm64
+
 # The only available ebuild (from GURU) has ~amd64 and no keyword for arm64 yet.
 =dev-libs/luksmeta-9-r1 **