diff --git a/acme.sh/notify/rocketchat.sh b/acme.sh/notify/rocketchat.sh
index 6af1b06..9d10ee5 100644
--- a/acme.sh/notify/rocketchat.sh
+++ b/acme.sh/notify/rocketchat.sh
@@ -9,6 +9,8 @@ rocketchat_send() {
   _statusCode="$3" #0: success, 1: error 2($RENEW_SKIP): skipped
   _debug "_statusCode" "$_statusCode"
 
+  _hostname=`hostname -f`
+
   ROCKETCHAT_WEBHOOK_URL="${ROCKETCHAT_WEBHOOK_URL:-$(_readaccountconf_mutable ROCKETCHAT_WEBHOOK_URL)}"
   if [ -z "$ROCKETCHAT_WEBHOOK_URL" ]; then
     ROCKETCHAT_WEBHOOK_URL=""
@@ -19,7 +21,7 @@ rocketchat_send() {
   _saveaccountconf_mutable ROCKETCHAT_WEBHOOK_URL "$ROCKETCHAT_WEBHOOK_URL"
 
    export _H1="Content-Type: application/json"
-     _content="$(printf "*%s*\n%s" "$_subject" "$_content" | _json_encode)"
+     _content="$(printf "*%s*\n%s" "$_subject on $_hostname" "$_content" | _json_encode)"
   _data="{\"text\": \"$_content\" }"
 
   response="$(_post "$_data" "$ROCKETCHAT_WEBHOOK_URL")"