diff --git a/Misc/NEWS.d/next/Library/2024-07-21-10-45-24.gh-issue-122081.dNrYMq.rst b/Misc/NEWS.d/next/Library/2024-07-21-10-45-24.gh-issue-122081.dNrYMq.rst
@@ -0,0 +1,2 @@
+Fix a crash in the :func:`!decimal.IEEEContext` optional function
+available via the ``EXTRA_FUNCTIONALITY`` configuration flag.
diff --git a/Modules/_decimal/_decimal.c b/Modules/_decimal/_decimal.c
@@ -1519,7 +1519,7 @@ init_extended_context(PyObject *v)
 #ifdef EXTRA_FUNCTIONALITY
 /* Factory function for creating IEEE interchange format contexts */
 static PyObject *
-ieee_context(PyObject *dummy UNUSED, PyObject *v)
+ieee_context(PyObject *module, PyObject *v)
 {
     PyObject *context;
     mpd_ssize_t bits;
@@ -1536,7 +1536,7 @@ ieee_context(PyObject *dummy UNUSED, PyObject *v)
         goto error;
     }
 
-    decimal_state *state = get_module_state_by_def(Py_TYPE(v));
+    decimal_state *state = get_module_state(module);
     context = PyObject_CallObject((PyObject *)state->PyDecContext_Type, NULL);
     if (context == NULL) {
         return NULL;
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		Fix a crash in the :func:`!decimal.IEEEContext` optional function
		available via the ``EXTRA_FUNCTIONALITY`` configuration flag.