diff --git a/docs/using.rst b/docs/using.rst
index 7764408bf..0aeed58b9 100644
--- a/docs/using.rst
+++ b/docs/using.rst
@@ -233,7 +233,7 @@ certificate that contains all of the old domains and one or more additional
 new domains.
 
 ``--allow-subset-of-names`` tells Certbot to continue with cert generation if
-only some of the specified domain authorazations can be obtained. This may
+only some of the specified domain authorizations can be obtained. This may
 be useful if some domains specified in a certificate no longer point at this
 system.