diff --git a/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php b/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php
index 563c58ca..8d507b4d 100644
--- a/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php
@@ -62,6 +62,11 @@ trait AuthKeyHandler
                 * ***********************************************************************
                 * Find our key in the server_public_key_fingerprints vector
                 */
+                if (!isset($this->key->keydata)) {
+        // Load rsa key
+        \danog\MadelineProto\Logger::log(['Loading RSA key...'], Logger::ULTRA_VERBOSE);
+        $this->key = new RSA($this->settings['authorization']['rsa_key']);
+                }
                 foreach ($ResPQ['server_public_key_fingerprints'] as $curfp) {
                     if ($this->key->keydata['fp'] === $curfp) {
                         $public_key_fingerprint = $curfp;