diff --git a/test/state/mpt.cpp b/test/state/mpt.cpp
index df2b5806ec..57f9c4a81b 100644
--- a/test/state/mpt.cpp
+++ b/test/state/mpt.cpp
@@ -123,24 +123,6 @@ class MPTNode
     [[nodiscard]] hash256 hash() const;
 };
 
-MPT::MPT() noexcept = default;
-MPT::~MPT() noexcept = default;
-
-void MPT::insert(bytes_view key, bytes&& value)
-{
-    if (m_root == nullptr)
-        m_root = std::make_unique<MPTNode>(MPTNode::leaf(Path{key}, std::move(value)));
-    else
-        m_root->insert(Path{key}, std::move(value));
-}
-
-[[nodiscard]] hash256 MPT::hash() const
-{
-    if (m_root == nullptr)
-        return emptyMPTHash;
-    return m_root->hash();
-}
-
 void MPTNode::insert(const Path& path, bytes&& value)  // NOLINT(misc-no-recursion)
 {
     switch (m_kind)
@@ -282,4 +264,23 @@ hash256 MPTNode::hash() const  // NOLINT(misc-no-recursion)
     return r;
 }
 
+
+MPT::MPT() noexcept = default;
+MPT::~MPT() noexcept = default;
+
+void MPT::insert(bytes_view key, bytes&& value)
+{
+    if (m_root == nullptr)
+        m_root = std::make_unique<MPTNode>(MPTNode::leaf(Path{key}, std::move(value)));
+    else
+        m_root->insert(Path{key}, std::move(value));
+}
+
+[[nodiscard]] hash256 MPT::hash() const
+{
+    if (m_root == nullptr)
+        return emptyMPTHash;
+    return m_root->hash();
+}
+
 }  // namespace evmone::state