diff --git a/app/app.go b/app/app.go
index <HASH>..<HASH> 100644
--- a/app/app.go
+++ b/app/app.go
@@ -746,7 +746,8 @@ func (app *App) UnsetEnvs(variableNames []string, publicOnly bool) error {
 }
 
 // SetCName defines the CName of the app. It updates the attribute and saves
-// the app in the database, returning an error when it cannot save the app.
+// the app in the database, returning an error when it cannot save the change
+// in the database.
 func (app *App) SetCName(cname string) error {
 	conn, err := db.Conn()
 	if err != nil {
app: better wording in SetCName docs

Related to #<I>.