diff --git a/Modules/_elementtree.c b/Modules/_elementtree.c
index 5bf67870767..b574c96d3f9 100644
--- a/Modules/_elementtree.c
+++ b/Modules/_elementtree.c
@@ -4430,9 +4430,7 @@ module_exec(PyObject *m)
 
 static struct PyModuleDef_Slot elementtree_slots[] = {
     {Py_mod_exec, module_exec},
-    // XXX gh-103092: fix isolation.
-    {Py_mod_multiple_interpreters, Py_MOD_MULTIPLE_INTERPRETERS_NOT_SUPPORTED},
-    //{Py_mod_multiple_interpreters, Py_MOD_PER_INTERPRETER_GIL_SUPPORTED},
+    {Py_mod_multiple_interpreters, Py_MOD_PER_INTERPRETER_GIL_SUPPORTED},
     {0, NULL},
 };