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Diffstat (limited to 'crypto/src/x509/extension/X509ExtensionUtil.cs')
-rw-r--r--crypto/src/x509/extension/X509ExtensionUtil.cs2
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/src/x509/extension/X509ExtensionUtil.cs b/crypto/src/x509/extension/X509ExtensionUtil.cs
index e1f925b08..4d49dccd7 100644
--- a/crypto/src/x509/extension/X509ExtensionUtil.cs
+++ b/crypto/src/x509/extension/X509ExtensionUtil.cs
@@ -1,3 +1,5 @@
+using System;
+
 using Org.BouncyCastle.Asn1;
 
 namespace Org.BouncyCastle.X509.Extension