diff --git a/Objects/listobject.c b/Objects/listobject.c
index 79ef8f532fbb98..401d1026133f4e 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -816,13 +816,10 @@ static PyObject *
 list_insert_impl(PyListObject *self, Py_ssize_t index, PyObject *object)
 /*[clinic end generated code: output=7f35e32f60c8cb78 input=b1987ca998a4ae2d]*/
 {
-    PyObject *ret = Py_None;
-    Py_BEGIN_CRITICAL_SECTION(self);
-    if (ins1(self, index, object) < 0) {
-        ret = NULL;
+    if (ins1(self, index, object) == 0) {
+        Py_RETURN_NONE;
     }
-    Py_END_CRITICAL_SECTION();
-    return ret;
+    return NULL;
 }
 
 /*[clinic input]