diff --git a/rackspace/identity/v2/users/delegate.go b/rackspace/identity/v2/users/delegate.go
index 94b97dc..a366b41 100644
--- a/rackspace/identity/v2/users/delegate.go
+++ b/rackspace/identity/v2/users/delegate.go
@@ -87,7 +87,7 @@
 	return GetResult{os.Get(client, id)}
 }
 
-// UpdateOptsBuilder allows extentions to add additional attributes to the Update request.
+// UpdateOptsBuilder allows extensions to add additional attributes to the Update request.
 type UpdateOptsBuilder interface {
 	ToUserUpdateMap() map[string]interface{}
 }