diff --git a/pkgs/applications/version-management/monotone/default.nix b/pkgs/applications/version-management/monotone/default.nix
index 651ac6b26b0..36a3365c52b 100644
--- a/pkgs/applications/version-management/monotone/default.nix
+++ b/pkgs/applications/version-management/monotone/default.nix
@@ -28,6 +28,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "A free distributed version control system";
     maintainers = [stdenv.lib.maintainers.raskin];
-    platforms = stdenv.lib.platforms.all;
+    platforms = stdenv.lib.platforms.unix;
   };
 }