Fix a typo in pkinit.rst

diff --git a/doc/admins/pkinit.rst b/doc/admins/pkinit.rst
index fbf413abb7bf0fcca2940ad1afe90dbd049fe1fc..84331b1ae0306440a96368015bcd94694403edf0 100644 (file)
--- a/doc/admins/pkinit.rst
+++ b/doc/admins/pkinit.rst
@@ -88,7 +88,7 @@ Generating client certificates
 
 PKINIT client certificates also must have some unusual certificate
 fields.  To generate a client certificate with OpenSSL, you will need
-a extensions file (different from the KDC extensions file above)
+an extensions file (different from the KDC extensions file above)
 containing::
 
     [client_cert]