diff --git a/pkgs/by-name/ne/nemo-with-extensions/package.nix b/pkgs/by-name/ne/nemo-with-extensions/package.nix
index 9bdf5deba5ca..03aa00431e99 100644
--- a/pkgs/by-name/ne/nemo-with-extensions/package.nix
+++ b/pkgs/by-name/ne/nemo-with-extensions/package.nix
@@ -46,7 +46,8 @@ symlinkJoin {
 
     # Point to wrapped binary in all service files
     for file in "share/dbus-1/services/nemo.FileManager1.service" \
-      "share/dbus-1/services/nemo.service"
+      "share/dbus-1/services/nemo.service" \
+      "share/polkit-1/actions/org.nemo.root.policy"
     do
       rm "$out/$file"
       substitute "${nemo}/$file" "$out/$file" \
diff --git a/pkgs/by-name/ne/nemo/package.nix b/pkgs/by-name/ne/nemo/package.nix
index 6c7285943c23..ef4694e6f8e9 100644
--- a/pkgs/by-name/ne/nemo/package.nix
+++ b/pkgs/by-name/ne/nemo/package.nix
@@ -87,13 +87,6 @@ stdenv.mkDerivation rec {
     "--localedir=${cinnamon-translations}/share/locale"
   ];
 
-  postInstall = ''
-    # This fixes open as root and handles nemo-with-extensions well.
-    # https://github.com/NixOS/nixpkgs/issues/297570
-    substituteInPlace $out/share/polkit-1/actions/org.nemo.root.policy \
-      --replace-fail "$out/bin/nemo" "/run/current-system/sw/bin/nemo"
-  '';
-
   preFixup = ''
     gappsWrapperArgs+=(
        --prefix XDG_DATA_DIRS : "${