#8528: fix typo.
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index 8d74c50..2b3275c 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -1700,7 +1700,7 @@
Originally, the argparse module had attempted to maintain compatibility with
optparse. However, optparse was difficult to extend transparently, particularly
with the changes required to support the new ``nargs=`` specifiers and better
-usage messges. When most everything in optparse had either been copy-pasted
+usage messages. When most everything in optparse had either been copy-pasted
over or monkey-patched, it no longer seemed practical to try to maintain the
backwards compatibility.