diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 329c43d467..346090f0d4 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -10742,17 +10742,16 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
                     to build.
                     This variable works in conjunction with the
                     <link linkend='ref-classes-blacklist'><filename>blacklist</filename></link>
-                    class, which the recipe must inherit globally.
+                    class, which is inherited globally.
                 </para>
 
                 <para>
-                    To prevent a recipe from being built, inherit the class
-                    globally and use the variable in your
+                    To prevent a recipe from being built, use the
+                    <filename>PNBLACKLIST</filename> variable in your
                     <filename>local.conf</filename> file.
                     Here is an example that prevents
                     <filename>myrecipe</filename> from being built:
                     <literallayout class='monospaced'>
-     INHERIT += "blacklist"
      PNBLACKLIST[myrecipe] = "Not supported by our organization."
                     </literallayout>
                 </para>