diff --git a/src/config/imap.php b/src/config/imap.php
index ce08a23..cdcfc1d 100644
--- a/src/config/imap.php
+++ b/src/config/imap.php
@@ -80,7 +80,7 @@
     |
     */
     'options' => [
-        'fetch' => FT_UID,
+        'fetch' => 'FT_UID',
         'open' => [
             // 'DISABLE_AUTHENTICATOR' => 'GSSAPI'
         ]