diff --git a/documentation/poky-ref-manual/ref-variables.xml b/documentation/poky-ref-manual/ref-variables.xml
index 1331d1adfc..150d15c433 100644
--- a/documentation/poky-ref-manual/ref-variables.xml
+++ b/documentation/poky-ref-manual/ref-variables.xml
@@ -1612,9 +1612,9 @@ recipes-graphics/xorg-font/xorg-font-common.inc:INC_PR = "r2"
 
         <glossentry id='var-PRINC'><glossterm>PRINC</glossterm>
             <glossdef>
-                <para>Causes the <filename>PR</filename> variable to dynamically increment.
-                    This incrementation increases the value of a recipe's revision 
-                    (<filename>PR</filename>) while minimizing the impact of layer ordering.</para>
+                <para>Causes the <filename>PR</filename> variable of 
+                    <filename>.bbappend</filename> files to dynamically increment.
+                    This increment minimizes the impact of layer ordering.</para>
                 <para>In order to ensure multiple <filename>.bbappend</filename> files can co-exist, 
                     <filename>PRINC</filename> should be self referencing.
                     The variable defaults to 0.</para>