diff --git a/pkgs/desktops/lxqt/lxqt-build-tools/default.nix b/pkgs/desktops/lxqt/lxqt-build-tools/default.nix
index f72394a09825..d543cf11c359 100644
--- a/pkgs/desktops/lxqt/lxqt-build-tools/default.nix
+++ b/pkgs/desktops/lxqt/lxqt-build-tools/default.nix
@@ -1,6 +1,7 @@
 { lib
 , stdenv
 , mkDerivation
+, fetchpatch
 , fetchFromGitHub
 , cmake
 , pkg-config
@@ -22,6 +23,15 @@ mkDerivation rec {
     sha256 = "vzppKTDwADBG5pOaluT858cWCKFFRaSbHz2Qhe6799E=";
   };
 
+  patches = [
+    # in master post 0.11.0, see https://github.com/lxqt/lxqt-build-tools/pull/76
+    (fetchpatch {
+      name = "fix-pkg-config.patch";
+      url = "https://github.com/lxqt/lxqt-build-tools/pull/76/commits/fa9672b671ede3f46b004f81580f9afb50fedf00.patch";
+      sha256 = "0dl7n1afcc6ky9vd9lpc65p9grpszpql7lfjq2vlzlilixnv8xv1";
+    })
+  ];
+
   postPatch = ''
     # Nix clang on darwin identifies as 'Clang', not 'AppleClang'
     # Without this, dependants fail to link.