diff --git a/ocsipersist-dbm-config.opam b/ocsipersist-dbm-config.opam
index 7c741ad..e39a01b 100644
--- a/ocsipersist-dbm-config.opam
+++ b/ocsipersist-dbm-config.opam
@@ -12,6 +12,7 @@ bug-reports: "https://github.com/ocsigen/ocsipersist/issues"
 dev-repo: "git+https://github.com/ocsigen/ocsipersist.git"
 build:   [ "dune" "build" "-p" name "-j" jobs ]
 
+available: [ os != "macos" ]
 depends: [
   "dune" {>= "2.9"}
   "xml-light"
diff --git a/ocsipersist-dbm.opam b/ocsipersist-dbm.opam
index 997c821..c3b36e3 100644
--- a/ocsipersist-dbm.opam
+++ b/ocsipersist-dbm.opam
@@ -12,6 +12,7 @@ bug-reports: "https://github.com/ocsigen/ocsipersist/issues"
 dev-repo: "git+https://github.com/ocsigen/ocsipersist.git"
 build:   [ "dune" "build" "-p" name "-j" jobs ]
 
+available: [ os != "macos" ]
 depends: [
   "dune" {>= "2.9"}
   "lwt" {>= "4.2.0"}