diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f72734..5e459b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  - Drop macOS 11 support
  - Fix (and test) all compression modules on all platforms
  - Recompiling the built-in Python now requires that `conan>=2.0.0` is installed
-
+ - Fix [#324](https://github.com/mmomtchev/pymport/issues/324), reference counting error when accessing the Python constructor `.constr`
+ 
 ### [1.5.1] 2024-04-01
  - Fix the build with recent Node.js versions after `node_api_nogc_env` in Node.js 18.20
 
diff --git a/src/pyobj.cc b/src/pyobj.cc
index 2f519fc..7da159e 100644
--- a/src/pyobj.cc
+++ b/src/pyobj.cc
@@ -158,7 +158,7 @@ Value PyObjectWrap::Constructor(const CallbackInfo &info) {
   Napi::Env env = info.Env();
   PyGILGuard pyGilGuard;
 
-  return New(env, PyStrongRef(reinterpret_cast<PyObject *>(Py_TYPE(*self))));
+  return New(env, PyStrongRef(PyWeakRef(reinterpret_cast<PyObject *>(Py_TYPE(*self)))));
 }
 
 Value PyObjectWrap::Item(const CallbackInfo &info) {
diff --git a/src/pystackobject.h b/src/pystackobject.h
index 03864e4..c96fbe9 100644
--- a/src/pystackobject.h
+++ b/src/pystackobject.h
@@ -115,7 +115,7 @@ class PyStrongRef : public PyWeakRef {
       self = v.self;
       v.self = nullptr;
     } else if (v.self == nullptr) {
-      VERBOSE_PYOBJ(REFS, v.self, "StrongRef unreference");
+      VERBOSE_PYOBJ(REFS, self, "StrongRef unreference");
       ASSERT(self->ob_refcnt > 0);
       Py_DECREF(self);
       self = nullptr;