diff --git a/pkgs/development/python-modules/dissect-executable/default.nix b/pkgs/development/python-modules/dissect-executable/default.nix
index 340d6ce66b84..8511b2df9448 100644
--- a/pkgs/development/python-modules/dissect-executable/default.nix
+++ b/pkgs/development/python-modules/dissect-executable/default.nix
@@ -11,7 +11,7 @@
 buildPythonPackage rec {
   pname = "dissect-executable";
   version = "1.5";
-  format = "pyproject";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";