diff --git a/poky/meta/conf/machine/include/tune-thunderx.inc b/poky/meta/conf/machine/include/tune-thunderx.inc
index 92adf2d..aa4d050 100644
--- a/poky/meta/conf/machine/include/tune-thunderx.inc
+++ b/poky/meta/conf/machine/include/tune-thunderx.inc
@@ -15,5 +15,5 @@
 BASE_LIB_tune-thunderx = "lib64"
 BASE_LIB_tune-thunderx_be = "lib64"
 
-PACKAGE_EXTRA_ARCHS_tune-thunderx = "armv8a-crc-crypto thunderx"
+PACKAGE_EXTRA_ARCHS_tune-thunderx = "${PACKAGE_EXTRA_ARCHS_tune-armv8a-crc-crypto} thunderx"
 PACKAGE_EXTRA_ARCHS_tune-thunderx_be = "aarch64_be thunderx_be"