diff --git a/Lib/test/test_doctest.py b/Lib/test/test_doctest.py
index 4e0c1f8..60e3c81 100644
--- a/Lib/test/test_doctest.py
+++ b/Lib/test/test_doctest.py
@@ -909,7 +909,7 @@
 
 Several option flags can be used to customize the behavior of the test
 runner.  These are defined as module constants in doctest, and passed
-to the DocTestRunner constructor (multiple constants should be or-ed
+to the DocTestRunner constructor (multiple constants should be ORed
 together).
 
 The DONT_ACCEPT_TRUE_FOR_1 flag disables matches between True/False