diff --git a/conf/layer.conf b/conf/layer.conf
index f7d0dda..1173e6d 100644
--- a/conf/layer.conf
+++ b/conf/layer.conf
@@ -14,4 +14,4 @@ LAYERDEPENDS_dpdk = "core"
 # This should only be incremented on significant changes that will
 # cause compatibility issues with other layers
 LAYERVERSION_dpdk = "1"
-LAYERSERIES_COMPAT_dpdk = "dunfell gatesgarth"
+LAYERSERIES_COMPAT_dpdk = "dunfell gatesgarth hardknott"