diff --git a/src/miner.rs b/src/miner.rs
index 73827f1..7f5efda 100644
--- a/src/miner.rs
+++ b/src/miner.rs
@@ -38,7 +38,7 @@ use tracing_futures::Instrument;
 use tw_chain::primitives::asset::{Asset, TokenAmount};
 use tw_chain::primitives::block::{self, BlockHeader};
 use tw_chain::primitives::transaction::Transaction;
-use tw_chain::utils::transaction_utils::{construct_tx_core, construct_tx_hash};
+use tw_chain::utils::transaction_utils::{construct_tx_core, construct_tx_hash, update_input_signatures};
 
 /// Key for last pow coinbase produced
 pub const LAST_COINBASE_KEY: &str = "LastCoinbaseKey";
@@ -1414,6 +1414,10 @@ impl MinerNode {
                         .await
                         .unwrap();
 
+                    // Sign the inputs
+                    let key_material = self.wallet_db.get_key_material(&tx_ins);
+                    let tx_ins = update_input_signatures(&tx_ins, &tx_outs, &key_material);
+
                     // Aggregation address is last generated address,
                     // which is generated by passing `None` as the `excess_address`
                     // to `fetch_tx_ins_and_tx_outs_merge_input_addrs`