diff --git a/Doc/lib/libimaplib.tex b/Doc/lib/libimaplib.tex
index 44f5fb77be6..a9b0df58f77 100644
--- a/Doc/lib/libimaplib.tex
+++ b/Doc/lib/libimaplib.tex
@@ -1,7 +1,7 @@
-% Based on HTML documentation by Piers Lauders <piers@staff.cs.usyd.edu.au>;
+% Based on HTML documentation by Piers Lauder <piers@staff.cs.usyd.edu.au>;
 % converted by Fred L. Drake, Jr. <fdrake@acm.org>.
 %
-% The imaplib module was written by Piers Lauders.
+% The imaplib module was written by Piers Lauder.
 
 \section{Standard Module \module{imaplib}}
 \stmodindex{imaplib}
diff --git a/Doc/libimaplib.tex b/Doc/libimaplib.tex
index 44f5fb77be6..a9b0df58f77 100644
--- a/Doc/libimaplib.tex
+++ b/Doc/libimaplib.tex
@@ -1,7 +1,7 @@
-% Based on HTML documentation by Piers Lauders <piers@staff.cs.usyd.edu.au>;
+% Based on HTML documentation by Piers Lauder <piers@staff.cs.usyd.edu.au>;
 % converted by Fred L. Drake, Jr. <fdrake@acm.org>.
 %
-% The imaplib module was written by Piers Lauders.
+% The imaplib module was written by Piers Lauder.
 
 \section{Standard Module \module{imaplib}}
 \stmodindex{imaplib}