diff --git a/merkle-tree/config/default.js b/merkle-tree/config/default.js
index 3d05968..7606f85 100644
--- a/merkle-tree/config/default.js
+++ b/merkle-tree/config/default.js
@@ -74,7 +74,7 @@ module.exports = {
         },
       },
     },
-    AssignShield: {
+    SyntheticPpaShield: {
       treeHeight: 32,
       events: {
         // filter for the following event names: