diff --git a/poky/documentation/sdk-manual/appendix-customizing-standard.rst b/poky/documentation/sdk-manual/appendix-customizing-standard.rst
index 9bc70cf..c619c15 100644
--- a/poky/documentation/sdk-manual/appendix-customizing-standard.rst
+++ b/poky/documentation/sdk-manual/appendix-customizing-standard.rst
@@ -29,6 +29,6 @@
 provided by recipes with the standard SDK by adding "api-documentation"
 to the
 :term:`DISTRO_FEATURES`
-variable: DISTRO_FEATURES_append = " api-documentation" Setting this
+variable: DISTRO_FEATURES:append = " api-documentation" Setting this
 variable as shown here causes the OpenEmbedded build system to build the
 documentation and then include it in the standard SDK.