diff --git a/documentation/dev-manual/dev-manual-common-tasks.xml b/documentation/dev-manual/dev-manual-common-tasks.xml
index e72e8f6f5f..189a4ffe01 100644
--- a/documentation/dev-manual/dev-manual-common-tasks.xml
+++ b/documentation/dev-manual/dev-manual-common-tasks.xml
@@ -968,7 +968,7 @@
 
                 <para>
                     You can add packages using a similar approach through the  
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-POKY_EXTRA_INSTALL'>POKY_EXTRA_INSTALL</ulink></filename> 
+                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-CORE_IMAGE_EXTRA_INSTALL'>CORE_IMAGE_EXTRA_INSTALL</ulink></filename> 
                     variable.
                     If you use this variable, only <filename>core-image-*</filename> images are affected.
                 </para>