diff --git a/static-data/www/mail/loadsettings.js b/static-data/www/mail/loadsettings.js
index 0fbd6c26..c6608c29 100644
--- a/static-data/www/mail/loadsettings.js
+++ b/static-data/www/mail/loadsettings.js
@@ -17,7 +17,7 @@ fetch('/config/get/mail', {
     if (mailSettings.notificationSetting === false){
       document.getElementById('notificationSetting').checked = false
     }
-    if (mailSettings.signature !== false){
+    if (typeof mailSettings.signature != undefined && mailSettings.signature != null && mailSettings.signature != ""){
       document.getElementById('mailSignatureSetting').value = mailSettings.signature
     }
   })
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