diff --git a/pkgs/applications/misc/bitwarden-menu/default.nix b/pkgs/applications/misc/bitwarden-menu/default.nix
index 4c6eb0f1686b..b1ea4d9e6690 100644
--- a/pkgs/applications/misc/bitwarden-menu/default.nix
+++ b/pkgs/applications/misc/bitwarden-menu/default.nix
@@ -9,7 +9,7 @@
 buildPythonApplication rec {
   pname = "bitwarden-menu";
   version = "0.4.3";
-  format = "pyproject";
+  pyproject = true;
 
   src = fetchPypi {
     pname = "bitwarden_menu";