diff --git a/conf/layer.conf b/conf/layer.conf
index c57c8b9..84d40a1 100644
--- a/conf/layer.conf
+++ b/conf/layer.conf
@@ -9,7 +9,7 @@ BBFILE_COLLECTIONS += "security"
 BBFILE_PATTERN_security = "^${LAYERDIR}/"
 BBFILE_PRIORITY_security = "8"
 
-LAYERSERIES_COMPAT_security = "styhead"
+LAYERSERIES_COMPAT_security = "styhead walnascar"
 
 LAYERDEPENDS_security = "core openembedded-layer"
 
diff --git a/meta-integrity/conf/layer.conf b/meta-integrity/conf/layer.conf
index 292ba21..33127c7 100644
--- a/meta-integrity/conf/layer.conf
+++ b/meta-integrity/conf/layer.conf
@@ -20,7 +20,7 @@ INTEGRITY_BASE := '${LAYERDIR}'
 # interactive shell is enough.
 OE_TERMINAL_EXPORTS += "INTEGRITY_BASE"
 
-LAYERSERIES_COMPAT_integrity = "styhead"
+LAYERSERIES_COMPAT_integrity = "styhead walnascar"
 # ima-evm-utils depends on keyutils from meta-oe
 LAYERDEPENDS_integrity = "core openembedded-layer"
 
diff --git a/meta-parsec/conf/layer.conf b/meta-parsec/conf/layer.conf
index e59b60c..614c17e 100644
--- a/meta-parsec/conf/layer.conf
+++ b/meta-parsec/conf/layer.conf
@@ -8,7 +8,7 @@ BBFILE_COLLECTIONS += "parsec-layer"
 BBFILE_PATTERN_parsec-layer = "^${LAYERDIR}/"
 BBFILE_PRIORITY_parsec-layer = "5"
 
-LAYERSERIES_COMPAT_parsec-layer = "styhead nanbield scarthgap"
+LAYERSERIES_COMPAT_parsec-layer = "walnascar styhead nanbield scarthgap"
 
 LAYERDEPENDS_parsec-layer = "core clang-layer"
 BBLAYERS_LAYERINDEX_NAME_parsec-layer = "meta-parsec"
diff --git a/meta-tpm/conf/layer.conf b/meta-tpm/conf/layer.conf
index b8df817..5f96114 100644
--- a/meta-tpm/conf/layer.conf
+++ b/meta-tpm/conf/layer.conf
@@ -8,7 +8,7 @@ BBFILE_COLLECTIONS += "tpm-layer"
 BBFILE_PATTERN_tpm-layer = "^${LAYERDIR}/"
 BBFILE_PRIORITY_tpm-layer = "6"
 
-LAYERSERIES_COMPAT_tpm-layer = "styhead"
+LAYERSERIES_COMPAT_tpm-layer = "styhead walnascar"
 
 LAYERDEPENDS_tpm-layer = " \
     core \