diff --git a/packages/conf-libmosquitto/conf-libmosquitto.1/opam b/packages/conf-libmosquitto/conf-libmosquitto.1/opam
index aae0e675884..c8e591fa491 100644
--- a/packages/conf-libmosquitto/conf-libmosquitto.1/opam
+++ b/packages/conf-libmosquitto/conf-libmosquitto.1/opam
@@ -1,11 +1,13 @@
-opam-version: "1"
+opam-version: "1.2"
 maintainer: "Markus W. Weissmann <markus.weissmann@in.tum.de>"
 authors: [ "Markus W. Weissmann <markus.weissmann@in.tum.de>" ]
 homepage: "https://mosquitto.org/"
+dev-repo: "https://github.com/ocaml/opam-repository.git"
+bug-reports: "https://github.com/ocaml/opam-repository/issues"
 license: [ "Eclipse Public License v1.0" "Eclipse Distribution License 1.0" ]
 build: [
-  ["ls" "/usr/include/mosquitto.h" {os != "darwin"}]
-  ["brew" "ls" "--versions" "mosquitto" {os = "darwin"}]
+  ["ls" "/usr/include/mosquitto.h"] {os != "darwin"}
+  ["brew" "ls" "--versions" "mosquitto"] {os = "darwin"}
 ]
 depexts: [
   [["debian"] ["libmosquitto-dev" ]]