diff --git a/acme.sh b/acme.sh
index 76d76e7c..9b8e11dd 100755
--- a/acme.sh
+++ b/acme.sh
@@ -2757,7 +2757,7 @@ _initconf() {
 
 #LOG_FILE=\"$DEFAULT_LOG_FILE\"
 
-#AUTO_UPGRADE=""
+#AUTO_UPGRADE=\"1\"
 
 #STAGE=1 # Use the staging api
 #FORCE=1 # Force to issue cert