2 files changed, 3 insertions, 0 deletions
diff --git a/net/cert/signed_tree_head.cc b/net/cert/signed_tree_head.cc
index b430b37..8bf2b9f 100644
--- a/net/cert/signed_tree_head.cc
+++ b/net/cert/signed_tree_head.cc
@@ -29,6 +29,8 @@ SignedTreeHead::SignedTreeHead(Version version,
   memcpy(this->sha256_root_hash, sha256_root_hash, kSthRootHashLength);
 }
 
+SignedTreeHead::SignedTreeHead(const SignedTreeHead& other) = default;
+
 SignedTreeHead::~SignedTreeHead() {}
 
 void PrintTo(const SignedTreeHead& sth, std::ostream* os) {
diff --git a/net/cert/signed_tree_head.h b/net/cert/signed_tree_head.h
index 73b6fdc..154c7a9 100644
--- a/net/cert/signed_tree_head.h
+++ b/net/cert/signed_tree_head.h
@@ -36,6 +36,7 @@ struct NET_EXPORT SignedTreeHead {
                  const char sha256_root_hash[kSthRootHashLength],
                  const DigitallySigned& signature,
                  const std::string& log_id);
+  SignedTreeHead(const SignedTreeHead& other);
   ~SignedTreeHead();
 
   Version version;