1 files changed, 1 insertions, 1 deletions
diff --git a/src/v1.erl b/src/v1.erl
index 6007aaa..e40d528 100644
--- a/src/v1.erl
+++ b/src/v1.erl
@@ -33,7 +33,7 @@ get_sth(SessionID, _Env, _Input) ->
        timestamp = Timestamp,
        roothash = Roothash,
        signature = Signature} = plop:sth(),
-    R = [{treesize, Treesize},
+    R = [{tree_size, Treesize},
          {timestamp, Timestamp},
          {sha256_root_hash, base64:encode(Roothash)},
          {tree_head_signature, base64:encode(Signature)}],