diff --git a/site/how-it-works.md b/site/how-it-works.md
index 7abb314b..61afc2a6 100644
--- a/site/how-it-works.md
+++ b/site/how-it-works.md
@@ -97,7 +97,7 @@ MACs discovery.
 
 ### Crypto
 
-Weave can be configures to encrypt both the data passing over the TCP
+Weave can be configured to encrypt both the data passing over the TCP
 connections and the payloads of UDP packets sent between peers. This
 is accomplished using the [NaCl](http://nacl.cr.yp.to/) crypto
 libraries, employing Curve25519, XSalsa20 and Poly1305 to encrypt and