diff --git a/libusb.opam b/libusb.opam
index 7c7affd..ef3b7a1 100644
--- a/libusb.opam
+++ b/libusb.opam
@@ -1,11 +1,13 @@
-name: "extremes"
+opam-version: "1.2"
 version: "2018-06-24-1"
 maintainer: "Matthieu Dubuget <matthieu.dubuget@gmail.com>"
 authors: "Matthieu Dubuget <matthieu.dubuget@gmail.com>"
+
 homepage: "none"
 bug-reports: "Matthieu Dubuget <matthieu.dubuget@gmail.com>"
 
 build: [
+  ["jbuilder" "subst" "-n" name] {pinned}
   [ "jbuilder" "build" "-p" name "-j" jobs ]
 ]