diff --git a/meta-hardening/conf/layer.conf b/meta-hardening/conf/layer.conf
index f5db751..a7e32e5 100644
--- a/meta-hardening/conf/layer.conf
+++ b/meta-hardening/conf/layer.conf
@@ -8,7 +8,7 @@ BBFILE_COLLECTIONS += "harden-layer"
 BBFILE_PATTERN_harden-layer = "^${LAYERDIR}/"
 BBFILE_PRIORITY_harden-layer = "6"
 
-LAYERSERIES_COMPAT_harden-layer = "styhead"
+LAYERSERIES_COMPAT_harden-layer = "styhead walnascar"
 
 LAYERDEPENDS_harden-layer = "core openembedded-layer"