diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 51d314b..5545eae 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -4248,7 +4248,7 @@
     if (*exceptionObject == NULL)
         goto onError;
 
-    restuple = PyObject_CallFunctionObjArgs(*errorHandler, *exceptionObject, NULL);
+    restuple = _PyObject_CallOneArg(*errorHandler, *exceptionObject);
     if (restuple == NULL)
         goto onError;
     if (!PyTuple_Check(restuple)) {
@@ -4352,7 +4352,7 @@
     if (*exceptionObject == NULL)
         goto onError;
 
-    restuple = PyObject_CallFunctionObjArgs(*errorHandler, *exceptionObject, NULL);
+    restuple = _PyObject_CallOneArg(*errorHandler, *exceptionObject);
     if (restuple == NULL)
         goto onError;
     if (!PyTuple_Check(restuple)) {
@@ -6799,8 +6799,7 @@
     if (*exceptionObject == NULL)
         return NULL;
 
-    restuple = PyObject_CallFunctionObjArgs(
-        *errorHandler, *exceptionObject, NULL);
+    restuple = _PyObject_CallOneArg(*errorHandler, *exceptionObject);
     if (restuple == NULL)
         return NULL;
     if (!PyTuple_Check(restuple)) {
@@ -8778,8 +8777,7 @@
     if (*exceptionObject == NULL)
         return NULL;
 
-    restuple = PyObject_CallFunctionObjArgs(
-        *errorHandler, *exceptionObject, NULL);
+    restuple = _PyObject_CallOneArg(*errorHandler, *exceptionObject);
     if (restuple == NULL)
         return NULL;
     if (!PyTuple_Check(restuple)) {