diff --git a/pkgs/desktops/lxqt/pcmanfm-qt/default.nix b/pkgs/desktops/lxqt/pcmanfm-qt/default.nix
index 7465eefc3c32..599dd67828cb 100644
--- a/pkgs/desktops/lxqt/pcmanfm-qt/default.nix
+++ b/pkgs/desktops/lxqt/pcmanfm-qt/default.nix
@@ -42,6 +42,10 @@ mkDerivation rec {
 
   passthru.updateScript = lxqtUpdateScript { inherit pname version src; };
 
+  postPatch = ''
+    substituteInPlace config/pcmanfm-qt/lxqt/settings.conf.in --replace @LXQT_SHARE_DIR@ /run/current-system/sw/share/lxqt
+  '';
+
   meta = with lib; {
     description = "File manager and desktop icon manager (Qt port of PCManFM and libfm)";
     homepage = "https://github.com/lxqt/pcmanfm-qt";