diff --git a/pkgs/development/python-modules/pycddl/default.nix b/pkgs/development/python-modules/pycddl/default.nix
index 6a332d0ee02e..1d01d14538dd 100644
--- a/pkgs/development/python-modules/pycddl/default.nix
+++ b/pkgs/development/python-modules/pycddl/default.nix
@@ -41,6 +41,8 @@ buildPythonPackage rec {
     hash = "sha256-cEpvkSqe/wRCxEajmM148jbo6a346x2t81pMRpKEJyE=";
   };
 
+  env.PYO3_USE_ABI3_FORWARD_COMPATIBILITY = 1;
+
   nativeCheckInputs = [
     hypothesis
     pytestCheckHook