typo
diff --git a/Doc/lib/emailmessage.tex b/Doc/lib/emailmessage.tex
index 54e5cac..9059d88 100644
--- a/Doc/lib/emailmessage.tex
+++ b/Doc/lib/emailmessage.tex
@@ -38,7 +38,7 @@
 returned string.  \var{unixfrom} defaults to \code{False}.
 
 Note that this method is provided as a convenience and may not always format
-the message the way you want.  For example, by default it mangels lines that
+the message the way you want.  For example, by default it mangles lines that
 begin with \code{From }.  For more flexibility, instantiate a
 \class{Generator} instance and use its
 \method{flatten()} method directly.  For example: