diff --git a/documentation/ref-manual/usingpoky.xml b/documentation/ref-manual/usingpoky.xml
index e9bae1c6d0..6b7ce02fdd 100644
--- a/documentation/ref-manual/usingpoky.xml
+++ b/documentation/ref-manual/usingpoky.xml
@@ -1205,7 +1205,7 @@
             image.
             Minimally, through the use of options, you must provide either
             a machine name, a virtual machine image
-            (<filename>*.vmdk</filename>), or a kernel image
+            (<filename>*wic.vmdk</filename>), or a kernel image
             (<filename>*.bin</filename>).
         </para>