diff --git a/frontend/js/i18n/messages.json b/frontend/js/i18n/messages.json
index 896a9633..a4d0b0ec 100644
--- a/frontend/js/i18n/messages.json
+++ b/frontend/js/i18n/messages.json
@@ -205,7 +205,7 @@
       "reachability-wrong-data": "There is a server found at this domain but it returned an unexpected data. Is it the NPM server? Please make sure your domain points to the IP where your NPM instance is running.",
       "reachability-other": "There is a server found at this domain but it returned an unexpected status code {code}. Is it the NPM server? Please make sure your domain points to the IP where your NPM instance is running.",
       "download": "Download",
-      "renew-title": "Renew Let'sEncrypt Certificate",
+      "renew-title": "Renew Let's Encrypt Certificate",
       "search": "Search Certificate…"
     },
     "access-lists": {