diff --git a/Doc/api/concrete.tex b/Doc/api/concrete.tex
index 97ef134..e1f3e9a 100644
--- a/Doc/api/concrete.tex
+++ b/Doc/api/concrete.tex
@@ -2082,7 +2082,7 @@
 
 \begin{verbatim}
 PyObject *key, *value;
-int pos = 0;
+Py_ssize_t pos = 0;
 
 while (PyDict_Next(self->dict, &pos, &key, &value)) {
     /* do something interesting with the values... */
@@ -2097,7 +2097,7 @@
 
 \begin{verbatim}
 PyObject *key, *value;
-int pos = 0;
+Py_ssize_t pos = 0;
 
 while (PyDict_Next(self->dict, &pos, &key, &value)) {
     int i = PyInt_AS_LONG(value) + 1;
diff --git a/Misc/NEWS b/Misc/NEWS
index cdee2af..f277450 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -383,6 +383,9 @@
 Documentation
 -------------
 
+- Bug #1629125: fix wrong data type (int -> Py_ssize_t) in PyDict_Next
+  docs.
+
 - Bug #1565919: document set types in the Language Reference.
 
 - Bug #1546052: clarify that PyString_FromString(AndSize) copies the