diff --git a/Objects/rangeobject.c b/Objects/rangeobject.c
index eb18611..8449fc7 100644
--- a/Objects/rangeobject.c
+++ b/Objects/rangeobject.c
@@ -930,6 +930,13 @@
 {
     long start, stop, step;
 
+    if (PyErr_WarnEx(PyExc_DeprecationWarning,
+                     "range_iterator(): creating instances of range_iterator "
+                     "by calling range_iterator type is deprecated",
+                     1)) {
+        return NULL;
+    }
+
     if (!_PyArg_NoKeywords("range_iterator()", kw)) {
         return NULL;
     }