diff --git a/server/lib/classes/letsencrypt.inc.php b/server/lib/classes/letsencrypt.inc.php
index bce4e7b84a9ef7916d25a9b808f96fd5d0de19a0..6a1d2d02acaf6310d277aa662578212030527d20 100644
--- a/server/lib/classes/letsencrypt.inc.php
+++ b/server/lib/classes/letsencrypt.inc.php
@@ -406,6 +406,10 @@ class letsencrypt {
 			$app->log("There were " . $le_domain_count . " domains in the domain list. LE only supports 100, so we strip the rest.", LOGLEVEL_WARN);
 		}
 
+		if ($le_domain_count == 0) {
+			return false;
+		}
+
 		// unset useless data
 		unset($subdomains);
 		unset($aliasdomains);