diff --git a/pkgs/by-name/ca/cargo-tauri/test-app.nix b/pkgs/by-name/ca/cargo-tauri/test-app.nix
index 6d9b3f7e1fa0f..0536ed1912a6f 100644
--- a/pkgs/by-name/ca/cargo-tauri/test-app.nix
+++ b/pkgs/by-name/ca/cargo-tauri/test-app.nix
@@ -25,7 +25,7 @@ rustPlatform.buildRustPackage rec {
     };
   };
 
-  postPatch = ''
+  postPatch = lib.optionalString stdenv.hostPlatform.isLinux ''
     substituteInPlace $cargoDepsCopy/libappindicator-sys-*/src/lib.rs \
       --replace "libayatana-appindicator3.so.1" "${libayatana-appindicator}/lib/libayatana-appindicator3.so.1"
   '';