diff --git a/lib/state/block.rs b/lib/state/block.rs
index fc40427..260212a 100644
--- a/lib/state/block.rs
+++ b/lib/state/block.rs
@@ -563,14 +563,13 @@ pub fn disconnect_tip(
             .try_for_each(|(outpoint, utxo_hash)| {
                 let key = OutPointKey::from(outpoint);
                 if let Some(spent_output) =
-                    state.stxos.try_get(rwtxn, &key).map_err(DbError::from)?
+                    state.stxos.try_get(rwtxn, &key)?
                 {
                     accumulator_diff.insert(utxo_hash.into());
-                    state.stxos.delete(rwtxn, &key).map_err(DbError::from)?;
+                    state.stxos.delete(rwtxn, &key)?;
                     state
                         .utxos
-                        .put(rwtxn, &key, &spent_output.output)
-                        .map_err(DbError::from)?;
+                        .put(rwtxn, &key, &spent_output.output)?;
                     Ok(())
                 } else {
                     Err(Error::NoStxo {
diff --git a/lib/state/mod.rs b/lib/state/mod.rs
index 571c494..25ed6ab 100644
--- a/lib/state/mod.rs
+++ b/lib/state/mod.rs
@@ -43,7 +43,8 @@ pub struct PrevalidatedBlock {
     pub computed_merkle_root: MerkleRoot,
     pub total_fees: bitcoin::Amount,
     pub coinbase_value: bitcoin::Amount,
-    pub next_height: u32, // Precomputed next height to avoid DB read in write txn
+    /// Precomputed next height to avoid DB read in write txn
+    pub next_height: u32,
     pub accumulator_diff: crate::types::AccumulatorDiff,
 }