diff --git a/phpseclib/Crypt/DES.php b/phpseclib/Crypt/DES.php
index f6c1f301..0d6dd00e 100644
--- a/phpseclib/Crypt/DES.php
+++ b/phpseclib/Crypt/DES.php
@@ -723,7 +723,7 @@ class Crypt_DES {
                 mcrypt_generic_init($this->demcrypt, $this->keys, $this->decryptIV);
             }
 
-            return $this->mode != 'ctr' ? $this->_unpad($plaintext) : $plaintext;
+            return $this->paddable ? $this->_unpad($plaintext) : $plaintext;
         }
 
         if (!is_array($this->keys)) {
diff --git a/phpseclib/Crypt/TripleDES.php b/phpseclib/Crypt/TripleDES.php
index bbabf169..faf8c18a 100644
--- a/phpseclib/Crypt/TripleDES.php
+++ b/phpseclib/Crypt/TripleDES.php
@@ -265,6 +265,7 @@ class Crypt_TripleDES {
                 new Crypt_DES(CRYPT_DES_MODE_CBC),
                 new Crypt_DES(CRYPT_DES_MODE_CBC)
             );
+            $this->paddable = true;
 
             // we're going to be doing the padding, ourselves, so disable it in the Crypt_DES objects
             $this->des[0]->disablePadding();