diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 897e390..5de265d 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -1198,7 +1198,7 @@
 
     /* Decode via the codec registry */
     buffer = NULL;
-    if (PyBuffer_FillInfo(&info, (void *)s, size, 1, PyBUF_SIMPLE) < 0)
+    if (PyBuffer_FillInfo(&info, NULL, (void *)s, size, 1, PyBUF_SIMPLE) < 0)
         goto onError;
     buffer = PyMemoryView_FromMemory(&info);
     if (buffer == NULL)