diff --git a/postgresql.opam b/postgresql.opam
index b5e687a..7632e43 100644
--- a/postgresql.opam
+++ b/postgresql.opam
@@ -12,7 +12,7 @@ dev-repo: "https://github.com/mmottl/postgresql-ocaml.git"
 bug-reports: "https://github.com/mmottl/postgresql-ocaml/issues"
 
 build: [
-  ["jbuilder" "subst"]{pinned}
+  ["jbuilder" "subst" "-p" name] {pinned}
   ["jbuilder" "build" "-p" name "-j" jobs]
 ]