diff --git a/Doc/library/rlcompleter.rst b/Doc/library/rlcompleter.rst
index 9662ab965ad..9f1adc3bad7 100644
--- a/Doc/library/rlcompleter.rst
+++ b/Doc/library/rlcompleter.rst
@@ -69,7 +69,7 @@ Case Sensitivity
 You can change the Completer's default case sensitive selection to case insensitive using the following method:
 
 
-.. function:: rlcompleter.set_case_insensitive(option)
+.. function:: rlcompleter.set_ignore_case(option)
 
    Return the *None*.
 
diff --git a/Lib/rlcompleter.py b/Lib/rlcompleter.py
index 47ac6579d76..f5c8ea7baa4 100644
--- a/Lib/rlcompleter.py
+++ b/Lib/rlcompleter.py
@@ -13,7 +13,7 @@ Tip: to use the tab key as the completion key, call
 
 And to make completion with case insensitive, call
 
-    rlcompleter.set_case_insensitive(True)
+    rlcompleter.set_ignore_case(True)
 
 Notes:
 
@@ -192,7 +192,7 @@ class Completer:
         return matches
 
 _re_ignorecase_flags = 0
-def set_case_insensitive(option):
+def set_ignore_case(option):
     import re
     global _re_ignorecase_flags
     _re_ignorecase_flags = re.IGNORECASE if option else 0
diff --git a/Lib/test/test_rlcompleter.py b/Lib/test/test_rlcompleter.py
index a4c1c306d21..9c5a841b90e 100644
--- a/Lib/test/test_rlcompleter.py
+++ b/Lib/test/test_rlcompleter.py
@@ -141,7 +141,7 @@ class TestRlcompleter(unittest.TestCase):
         # add an additional attr for testing
         CompleteMe.SpAm = 2
         # enable the case insensitive option
-        rlcompleter.set_case_insensitive(True)
+        rlcompleter.set_ignore_case(True)
         # test globals
         self.assertEqual(self.completer.global_matches('completem'),
                          ['CompleteMe('])
@@ -149,7 +149,7 @@ class TestRlcompleter(unittest.TestCase):
         self.assertNotEqual(self.completer.attr_matches('CompleteMe.spa'),
                          ['CompleteMe.spam', 'CompleteMe.SpAm'])
         # disable the case insensitive option
-        rlcompleter.set_case_insensitive(False)
+        rlcompleter.set_ignore_case(False)
         # test globals
         self.assertNotEqual(self.completer.global_matches('completem'),
                             ['CompleteMe('])