diff --git a/pkgs/applications/networking/instant-messengers/signal-desktop/default.nix b/pkgs/applications/networking/instant-messengers/signal-desktop/default.nix
index 6afccfaaa0702..669161d66f60f 100644
--- a/pkgs/applications/networking/instant-messengers/signal-desktop/default.nix
+++ b/pkgs/applications/networking/instant-messengers/signal-desktop/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, autoPatchelfHook, dpkg, wrapGAppsHook, nixosTests
+{ stdenv, lib, fetchurl, autoPatchelfHook, dpkg, wrapGAppsHook, makeWrapper, nixosTests
 , gtk3, atk, at-spi2-atk, cairo, pango, gdk-pixbuf, glib, freetype, fontconfig
 , dbus, libX11, xorg, libXi, libXcursor, libXdamage, libXrandr, libXcomposite
 , libXext, libXfixes, libXrender, libXtst, libXScrnSaver, nss, nspr, alsa-lib
@@ -41,6 +41,7 @@ in stdenv.mkDerivation rec {
     autoPatchelfHook
     dpkg
     wrapGAppsHook
+    makeWrapper
   ];
 
   buildInputs = [
@@ -123,7 +124,6 @@ in stdenv.mkDerivation rec {
     gappsWrapperArgs+=(
       --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ stdenv.cc.cc ] }"
       ${customLanguageWrapperArgs}
-      --add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--enable-features=UseOzonePlatform --ozone-platform=wayland}}"
       --suffix PATH : ${lib.makeBinPath [ xdg-utils ]}
     )
 
@@ -135,6 +135,10 @@ in stdenv.mkDerivation rec {
     patchelf --add-needed ${libpulseaudio}/lib/libpulse.so $out/lib/Signal/resources/app.asar.unpacked/node_modules/ringrtc/build/linux/libringrtc-x64.node
   '';
 
+  postFixup = ''
+    wrapProgram $out/bin/signal-desktop --add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--enable-features=UseOzonePlatform --ozone-platform=wayland}}"
+  '';
+
   # Tests if the application launches and waits for "Link your phone to Signal Desktop":
   passthru.tests.application-launch = nixosTests.signal-desktop;