1 files changed, 2 insertions, 1 deletions
diff --git a/sources/pyside6/libpyside/pysidesignal.cpp b/sources/pyside6/libpyside/pysidesignal.cpp
index 687eb400e..b61ade1f5 100644
--- a/sources/pyside6/libpyside/pysidesignal.cpp
+++ b/sources/pyside6/libpyside/pysidesignal.cpp
@@ -733,7 +733,8 @@ static PyObject *signalDescrGet(PyObject *self, PyObject *obj, PyObject * /*type
 {
     auto signal = reinterpret_cast<PySideSignal *>(self);
     // Return the unbound signal if there is nothing to bind it to.
-    if (obj == nullptr || obj == Py_None) {
+    if (obj == nullptr || obj == Py_None
+        || !PySide::isQObjectDerived(Py_TYPE(obj), true)) {
         Py_INCREF(self);
         return self;
     }