diff --git a/firewood/src/merkle/node.rs b/firewood/src/merkle/node.rs
index 5ce90ac6b..43fbeafa1 100644
--- a/firewood/src/merkle/node.rs
+++ b/firewood/src/merkle/node.rs
@@ -22,8 +22,8 @@ mod leaf;
 mod partial_path;
 
 pub use branch::{BranchNode, MAX_CHILDREN, SIZE as BRANCH_NODE_SIZE};
-pub use extension::{ExtNode, SIZE as EXTENSION_NODE_SIZE};
-pub use leaf::LeafNode;
+pub use extension::ExtNode;
+pub use leaf::{LeafNode, SIZE as LEAF_NODE_SIZE};
 pub use partial_path::PartialPath;
 
 use crate::merkle::to_nibble_array;
@@ -89,7 +89,7 @@ impl NodeType {
         let items: Vec<Encoded<Vec<u8>>> = bincode::DefaultOptions::new().deserialize(buf)?;
 
         match items.len() {
-            EXTENSION_NODE_SIZE => {
+            LEAF_NODE_SIZE => {
                 let mut items = items.into_iter();
 
                 let decoded_key: Vec<u8> = items.next().unwrap().decode()?;
diff --git a/firewood/src/merkle/node/extension.rs b/firewood/src/merkle/node/extension.rs
index 8387f884d..fcbcc4e74 100644
--- a/firewood/src/merkle/node/extension.rs
+++ b/firewood/src/merkle/node/extension.rs
@@ -10,8 +10,6 @@ use crate::{
 };
 use std::fmt::{Debug, Error as FmtError, Formatter};
 
-pub const SIZE: usize = 2;
-
 #[derive(PartialEq, Eq, Clone)]
 pub struct ExtNode {
     pub(crate) path: PartialPath,
diff --git a/firewood/src/merkle/node/leaf.rs b/firewood/src/merkle/node/leaf.rs
index 58b55d31e..475f62a00 100644
--- a/firewood/src/merkle/node/leaf.rs
+++ b/firewood/src/merkle/node/leaf.rs
@@ -8,8 +8,7 @@ use bincode::Options;
 use super::{Data, Encoded};
 use crate::merkle::{from_nibbles, PartialPath};
 
-// will be needed when extension node is removed
-// pub const SIZE: usize = 2;
+pub const SIZE: usize = 2;
 
 #[derive(PartialEq, Eq, Clone)]
 pub struct LeafNode {