diff --git a/phpseclib/Crypt/Common/AsymmetricKey.php b/phpseclib/Crypt/Common/AsymmetricKey.php
index 7fd9506c..09eb5b1b 100644
--- a/phpseclib/Crypt/Common/AsymmetricKey.php
+++ b/phpseclib/Crypt/Common/AsymmetricKey.php
@@ -382,7 +382,7 @@ abstract class AsymmetricKey
             $shortname = $meta->getShortName();
             self::$plugins[static::ALGORITHM]['Keys'][strtolower($shortname)] = $fullname;
             if ($meta->hasConstant('IS_INVISIBLE')) {
-                self::$invisiblePlugins[static::ALGORITHM] = strtolower($name);
+                self::$invisiblePlugins[static::ALGORITHM][] = strtolower($shortname);
             }
         }
     }