diff --git a/Doc/library/imaplib.rst b/Doc/library/imaplib.rst
index 1d92fe5..3f45c95 100644
--- a/Doc/library/imaplib.rst
+++ b/Doc/library/imaplib.rst
@@ -109,7 +109,7 @@
    Convert *date_time* to an IMAP4 ``INTERNALDATE`` representation.  The
    return value is a string in the form: ``"DD-Mmm-YYYY HH:MM:SS
    +HHMM"`` (including double-quotes).  The *date_time* argument can be a
-   number (int or float) represening seconds since epoch (as returned
+   number (int or float) representing seconds since epoch (as returned
    by :func:`time.time`), a 9-tuple representing local time (as returned by
    :func:`time.localtime`), or a double-quoted string.  In the last case, it
    is assumed to already be in the correct format.