diff --git a/pkgs/by-name/xd/xdg-utils-cxx/package.nix b/pkgs/by-name/xd/xdg-utils-cxx/package.nix
index d5c9e7c9aff8..459ff18a9707 100644
--- a/pkgs/by-name/xd/xdg-utils-cxx/package.nix
+++ b/pkgs/by-name/xd/xdg-utils-cxx/package.nix
@@ -19,6 +19,14 @@ stdenv.mkDerivation rec {
     cmake
   ];
 
+  # Fix the build with CMake 4.
+  postPatch = ''
+    substituteInPlace CMakeLists.txt \
+      --replace-fail \
+        'cmake_minimum_required(VERSION 3.0)' \
+        'cmake_minimum_required(VERSION 3.10)'
+  '';
+
   meta = with lib; {
     description = "Implementation of the FreeDesktop specifications to be used in c++ projects";
     homepage = "https://github.com/azubieta/xdg-utils-cxx";