diff --git a/meta-yocto/conf/distro/poky-lsb.conf b/meta-yocto/conf/distro/poky-lsb.conf
index eb1cf8239c..49d12da060 100644
--- a/meta-yocto/conf/distro/poky-lsb.conf
+++ b/meta-yocto/conf/distro/poky-lsb.conf
@@ -3,7 +3,7 @@ require conf/distro/poky.conf
 DISTRO = "poky-lsb"
 DISTROOVERRIDES = "poky:linuxstdbase"
 
-DISTRO_FEATURES += "pam largefile"
+DISTRO_FEATURES_append = " pam largefile"
 PREFERRED_PROVIDER_virtual/libx11 = "libx11"