diff --git a/pkgs/development/python-modules/sympy/default.nix b/pkgs/development/python-modules/sympy/default.nix
index 575698e7a81c..3051beb73eb9 100644
--- a/pkgs/development/python-modules/sympy/default.nix
+++ b/pkgs/development/python-modules/sympy/default.nix
@@ -20,7 +20,6 @@ buildPythonPackage (finalAttrs: {
   pname = "sympy";
   version = "1.14.0";
   pyproject = true;
-  __structuredAttrs = true;
 
   src = fetchFromGitHub {
     owner = "sympy";