diff --git a/Lib/test/test_iter.py b/Lib/test/test_iter.py
index 509ec01..62a8d02 100644
--- a/Lib/test/test_iter.py
+++ b/Lib/test/test_iter.py
@@ -269,7 +269,7 @@
         try:
             self.assertEqual(list(f), ["0\n", "1\n", "2\n", "3\n", "4\n"])
             f.seek(0, 0)
-            self.assertEqual(list(f.xreadlines()),
+            self.assertEqual(list(f),
                              ["0\n", "1\n", "2\n", "3\n", "4\n"])
         finally:
             f.close()
@@ -302,7 +302,7 @@
         try:
             self.assertEqual(tuple(f), ("0\n", "1\n", "2\n", "3\n", "4\n"))
             f.seek(0, 0)
-            self.assertEqual(tuple(f.xreadlines()),
+            self.assertEqual(tuple(f),
                              ("0\n", "1\n", "2\n", "3\n", "4\n"))
         finally:
             f.close()
diff --git a/Lib/test/test_xreadline.py b/Lib/test/test_xreadline.py
index db9eb6b..0ba4adc 100644
--- a/Lib/test/test_xreadline.py
+++ b/Lib/test/test_xreadline.py
@@ -1,5 +1,8 @@
 from test.test_support import verbose
 
+import warnings
+warnings.filterwarnings('ignore', "xreadlines", DeprecationWarning)
+
 class XReader:
     def __init__(self):
         self.count = 5
diff --git a/Modules/xreadlinesmodule.c b/Modules/xreadlinesmodule.c
index 3009768..bf3c091 100644
--- a/Modules/xreadlinesmodule.c
+++ b/Modules/xreadlinesmodule.c
@@ -173,4 +173,6 @@
 {
 	XReadlinesObject_Type.ob_type = &PyType_Type;
 	Py_InitModule("xreadlines", xreadlines_functions);
+	PyErr_Warn(PyExc_DeprecationWarning,
+		   "xreadlines is deprecated; use 'for line in file'.");
 }