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-rw-r--r--src/serialization/crypto.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/serialization/crypto.h b/src/serialization/crypto.h
index b7763ffeb..6e683e629 100644
--- a/src/serialization/crypto.h
+++ b/src/serialization/crypto.h
@@ -2,6 +2,8 @@
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+#pragma once
+
#include <vector>
#include "serialization.h"