diff --git a/letsencrypt/lib/common b/letsencrypt/lib/common
index 1ada8a8..24fbe70 100644
--- a/letsencrypt/lib/common
+++ b/letsencrypt/lib/common
@@ -365,7 +365,7 @@ crt_renew() {
             else
                 info "Renewing domain $domain ($remaining days left)."
             fi
-            crt "$cfg" renew "$domain"
+            crt "$cfg" renew "$domain" </dev/null
             if [ "$?" != "0" ]; then
                 failed+=("$domain")
                 err "Certificate renew of '$domain' failed."