diff --git a/lib/Sinner/Phpseclib/File/ASN1.php b/lib/Sinner/Phpseclib/File/ASN1.php
index 5e83d11..3f0ada7 100644
--- a/lib/Sinner/Phpseclib/File/ASN1.php
+++ b/lib/Sinner/Phpseclib/File/ASN1.php
@@ -2,7 +2,7 @@
 
 namespace Sinner\Phpseclib\File;
 
-use Sinner\Phpseclib\Math\BigInteger;
+use Sinner\Phpseclib\Math\Math_BigInteger;
 use Sinner\Phpseclib\File\File_ASN1_Element;