diff --git a/Change-default-CA-to-ZeroSSL.md b/Change-default-CA-to-ZeroSSL.md
index e2339c7..b7b8ceb 100644
--- a/Change-default-CA-to-ZeroSSL.md
+++ b/Change-default-CA-to-ZeroSSL.md
@@ -1,4 +1,4 @@
-Previously, if no `server` was provided, or you have not `--set-default-ca` yet, acme.sh used letsencrypt as the default CA.
+Previously, if no `server` was provided, or if don't have `--set-default-ca` set, acme.sh used letsencrypt as the default CA.
 
 https://github.com/acmesh-official/acme.sh/wiki/Server