diff --git a/pkgs/tools/typesetting/lowdown/default.nix b/pkgs/tools/typesetting/lowdown/default.nix
index 9577fa2e5c04..6064f6ddc96c 100644
--- a/pkgs/tools/typesetting/lowdown/default.nix
+++ b/pkgs/tools/typesetting/lowdown/default.nix
@@ -49,11 +49,12 @@ stdenv.mkDerivation rec {
   postInstall =
     let
       inherit (stdenv.hostPlatform.extensions) sharedLibrary;
+      soVersion = "2";
     in
 
     lib.optionalString (enableShared && stdenv.isDarwin) ''
-      darwinDylib="$lib/lib/liblowdown.2.dylib"
-      mv "$lib/lib/liblowdown.so.2" "$darwinDylib"
+      darwinDylib="$lib/lib/liblowdown.${soVersion}.dylib"
+      mv "$lib/lib/liblowdown.so.${soVersion}" "$darwinDylib"
 
       # Make sure we are re-creating a symbolic link here
       test -L "$lib/lib/liblowdown.so"