Fixed typo


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2221 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CUSTOM_WPS_FORMAT b/docs/CUSTOM_WPS_FORMAT
index 365f430..b9959ef 100644
--- a/docs/CUSTOM_WPS_FORMAT
+++ b/docs/CUSTOM_WPS_FORMAT
@@ -36,7 +36,7 @@
   %fv : "(vbr)" if variable bit rate or "" if constant bit rate
   %d1 : First directory from end of file path.
   %d2 : Second directory from end of file path.
-  %d2 : Third directory from end of file path.
+  %d3 : Third directory from end of file path.
 
 Example for the the %dN commands: If the path is "/Rock/Kent/Isola/11 -
 747.mp3", %d1 is "Isola", %d2 is "Kent"... You get the picture.