diff --git a/doc/tor-design.tex b/doc/tor-design.tex
index c0113acef0..6752b84bba 100644
--- a/doc/tor-design.tex
+++ b/doc/tor-design.tex
@@ -206,7 +206,7 @@ or rotated its keys.  In Tor, clients negotiate {\it rendezvous points}
 to connect with hidden servers; reply onions are no longer required.
 
 
-Unlike Freedom \cite{freedom2-arch}, Tor does not anonymizes
+Unlike Freedom \cite{freedom2-arch}, Tor does not anonymize
 non-TCP protocols---not requiring patches (or built-in support) in an
 operating system's network stack has been valuable to Tor's
 portability and deployability.