diff --git a/Objects/abstract.c b/Objects/abstract.c
index 5707eb2..295c0ef 100644
--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -521,10 +521,10 @@ PyBuffer_ToContiguous(void *buf, Py_buffer *view, Py_ssize_t len, char fort)
      */
     elements = len / view->itemsize;
     while (elements--) {
-        addone(view->ndim, indices, view->shape);
         ptr = PyBuffer_GetPointer(view, indices);
         memcpy(dest, ptr, view->itemsize);
         dest += view->itemsize;
+        addone(view->ndim, indices, view->shape);
     }
     PyMem_Free(indices);
     return 0;