diff --git a/phpseclib/File/X509.php b/phpseclib/File/X509.php
index 07fd911d..428e677f 100644
--- a/phpseclib/File/X509.php
+++ b/phpseclib/File/X509.php
@@ -5148,7 +5148,7 @@ class File_X509
             $temp = $str;
         } else {
             $temp = preg_replace('#.*?^-+[^-]+-+[\r\n ]*$#ms', '', $str, 1);
-            $temp = preg_replace('#-+END.*[\r\n ]*.*#ms', '', $str, 1);
+            $temp = preg_replace('#-+END.*[\r\n ]*.*#ms', '', $temp, 1);
         }
         // remove new lines
         $temp = str_replace(array("\r", "\n", ' '), '', $temp);