diff --git a/Doc/lib/libzipfile.tex b/Doc/lib/libzipfile.tex
index 69e7878..30c7aaf 100644
--- a/Doc/lib/libzipfile.tex
+++ b/Doc/lib/libzipfile.tex
@@ -210,7 +210,7 @@
 \end{memberdesc}
 
 \begin{memberdesc}[ZipInfo]{date_time}
-  The time and date of the last modification to to the archive
+  The time and date of the last modification to the archive
   member.  This is a tuple of six values:
 
 \begin{tableii}{c|l}{code}{Index}{Value}