diff --git a/pep-0418.txt b/pep-0418.txt
index 90c36cb55..febee35b0 100644
--- a/pep-0418.txt
+++ b/pep-0418.txt
@@ -39,7 +39,7 @@ portable behaviour (ex: include time spend during sleep).
 To measure CPU time, Python does not provide directly a portable
 function.  ``time.clock()`` can be used on Unix, but it has a bad
 precision.  ``resource.getrusage()`` or ``os.times()`` can also be
-used on Unix, but they requires to compute the sum of time
+used on Unix, but they require to compute the sum of time
 spent in kernel space and user space.  The new ``time.process_time()``
 function acts as a portable counter that always measures CPU time
 (doesn't include time elapsed during sleep) and has the best available