diff --git a/documentation/dev-manual/dev-manual-common-tasks.xml b/documentation/dev-manual/dev-manual-common-tasks.xml
index 5f8e04543b..a497eeae26 100644
--- a/documentation/dev-manual/dev-manual-common-tasks.xml
+++ b/documentation/dev-manual/dev-manual-common-tasks.xml
@@ -235,7 +235,7 @@
                 <itemizedlist>
                     <listitem><para>Avoid "overlaying" entire recipes from
                         other layers in your configuration.
-                        In other words, don't copy an entire recipe into your
+                        In other words, do not copy an entire recipe into your
                         layer and then modify it.
                         Use <filename>.bbappend</filename> files to override the
                         parts of the recipe you need to modify.