diff --git a/Lib/collections/__init__.py b/Lib/collections/__init__.py
index b941950..f465e74 100644
--- a/Lib/collections/__init__.py
+++ b/Lib/collections/__init__.py
@@ -353,7 +353,7 @@
     {name} = _property(_itemgetter({index:d}), doc='Alias for field number {index:d}')
 '''
 
-def namedtuple(typename, field_names, verbose=False, rename=False):
+def namedtuple(typename, field_names, *, verbose=False, rename=False):
     """Returns a new subclass of tuple with named fields.
 
     >>> Point = namedtuple('Point', ['x', 'y'])
diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py
index a80c49c..c4c0a16 100644
--- a/Lib/test/test_collections.py
+++ b/Lib/test/test_collections.py
@@ -412,6 +412,18 @@
         self.assertEqual(NTColor._fields, ('red', 'green', 'blue'))
         globals().pop('NTColor', None)          # clean-up after this test
 
+    def test_keyword_only_arguments(self):
+        # See issue 25628
+        with support.captured_stdout() as template:
+            NT = namedtuple('NT', ['x', 'y'], verbose=True)
+        self.assertIn('class NT', NT._source)
+        with self.assertRaises(TypeError):
+            NT = namedtuple('NT', ['x', 'y'], True)
+
+        NT = namedtuple('NT', ['abc', 'def'], rename=True)
+        self.assertEqual(NT._fields, ('abc', '_1'))
+        with self.assertRaises(TypeError):
+            NT = namedtuple('NT', ['abc', 'def'], False, True)
 
     def test_namedtuple_subclass_issue_24931(self):
         class Point(namedtuple('_Point', ['x', 'y'])):