Update RELEASING
diff --git a/RELEASING b/RELEASING
index 121e0df..7040deb 100644
--- a/RELEASING
+++ b/RELEASING
@@ -37,7 +37,7 @@
 
    and publish the tar files by running 
 
-	make GPGKEY=<your gpg key id> release-publish
+	make PREV=<last version> GPGKEY=<your gpg key id> release-publish
 
 6) Run