diff --git a/source/core/authentication.txt b/source/core/authentication.txt
index 96ab845e4ea..7c792d2dc32 100644
--- a/source/core/authentication.txt
+++ b/source/core/authentication.txt
@@ -15,7 +15,7 @@ MongoDB supports a number of authentication mechanisms, or methods
 clients can use to validate their identity. These mechanisms allow
 MongoDB to integrate into existing authentication systems that your
 environments may use. MongoDB's default authentication method is a
-challenge and response mechanism; however, MongoDB also supports x509
+challenge and response mechanism. MongoDB also supports x509
 certificate authentication, LDAP proxy authentication, and Kerberos
 authentication.