diff --git a/postprocess/prj/build.lst b/postprocess/prj/build.lst
index b96f202c145d..0f01b1a8dd2f 100644
--- a/postprocess/prj/build.lst
+++ b/postprocess/prj/build.lst
@@ -4,3 +4,4 @@ po	postprocess\checkxml		nmake	-	all	po_checkxml NULL
 po	postprocess\checkdeliver	nmake	-	all	po_checkdlv NULL
 po	postprocess\packconfig		nmake	-	all	po_packconfig po_checkxml NULL
 po	postprocess\rebase	    	nmake	-	w	po_rebase po_checkdlv NULL
+po	postprocess\signing	    	nmake	-	w,sign	po_signing po_rebase.w NULL