diff --git a/pkgs/desktops/lxqt/lxqt-build-tools/default.nix b/pkgs/desktops/lxqt/lxqt-build-tools/default.nix
index 670cdc44e551..6da001a554c2 100644
--- a/pkgs/desktops/lxqt/lxqt-build-tools/default.nix
+++ b/pkgs/desktops/lxqt/lxqt-build-tools/default.nix
@@ -30,6 +30,12 @@ mkDerivation rec {
       url = "https://github.com/lxqt/lxqt-build-tools/pull/76/commits/fa9672b671ede3f46b004f81580f9afb50fedf00.patch";
       sha256 = "0dl7n1afcc6ky9vd9lpc65p9grpszpql7lfjq2vlzlilixnv8xv1";
     })
+    # Fix build failure of libqtxdg with GLib 2.73.1+
+    # https://github.com/lxqt/lxqt-build-tools/pull/79
+    (fetchpatch {
+      url = "https://github.com/lxqt/lxqt-build-tools/commit/4991811d9212ec1176af6d1cbe88aa37efad4836.patch";
+      sha256 = "sha256-PsYJKonMG6A9O4Li+RC1qBjFUzYgxVAwzSqHq/phmPc=";
+    })
   ];
 
   postPatch = ''