diff --git a/slides/yocto-recipe-advanced/yocto-recipe-advanced.tex b/slides/yocto-recipe-advanced/yocto-recipe-advanced.tex
index f0874e5f0d..5a1420707d 100644
--- a/slides/yocto-recipe-advanced/yocto-recipe-advanced.tex
+++ b/slides/yocto-recipe-advanced/yocto-recipe-advanced.tex
@@ -234,9 +234,9 @@ \subsection{Classes}
     \item This class helps to add users to the resulting image.
     \item Adding custom users is required by many services to avoid
           running them as root.
-    \item \code{USERADD_PACKAGES} must be defined when the
-          \code{useradd} class is inherited. Defines the list of
-          packages which needs the user.
+    \item \code{USERADD_PACKAGES} must be defined when the \code{useradd} class
+          is inherited. It defines the individual packages produced by the
+          recipe that need users or groups to be added.
     \item Users and groups will be created before the packages using
           it perform their \code{do_install}.
     \item At least one of the two following variables must be set: