diff --git a/crates/primitives/src/lib.rs b/crates/primitives/src/lib.rs
index 044dbaaf..4bf1ddbf 100644
--- a/crates/primitives/src/lib.rs
+++ b/crates/primitives/src/lib.rs
@@ -90,8 +90,8 @@ pub trait Block: Debug {
     /// Update zktrie state from trace
     #[inline]
     fn build_zktrie_db(&self, zktrie_db: &mut ZkMemoryDb) {
-        for (k, bytes) in self.flatten_proofs() {
-            zktrie_db.add_node_bytes(bytes, Some(k.as_slice())).unwrap();
+        for (_, bytes) in self.flatten_proofs() {
+            zktrie_db.add_node_bytes(bytes, None).unwrap();
         }
     }