diff --git a/crates/sui-bridge-indexer/src/lib.rs b/crates/sui-bridge-indexer/src/lib.rs
index 6fb95e6887ad4a..bcd9beaedf67a3 100644
--- a/crates/sui-bridge-indexer/src/lib.rs
+++ b/crates/sui-bridge-indexer/src/lib.rs
@@ -20,6 +20,7 @@ pub struct TokenTransfer {
     txn_hash: Vec<u8>,
     status: TokenTransferStatus,
     gas_usage: i64,
+    data_source: BridgeDataSource,
     data: Option<TokenTransferData>,
 }
 
@@ -41,6 +42,7 @@ impl From<TokenTransfer> for DBTokenTransfer {
             txn_hash: value.txn_hash,
             status: value.status.to_string(),
             gas_usage: value.gas_usage,
+            data_source: value.data_source.to_string(),
         }
     }
 }
@@ -86,3 +88,18 @@ impl Display for TokenTransferStatus {
         write!(f, "{str}")
     }
 }
+
+enum BridgeDataSource {
+    SUI,
+    ETH,
+}
+
+impl Display for BridgeDataSource {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        let str = match self {
+            BridgeDataSource::ETH => "ETH",
+            BridgeDataSource::SUI => "SUI",
+        };
+        write!(f, "{str}")
+    }
+}
diff --git a/crates/sui-bridge-indexer/src/main.rs b/crates/sui-bridge-indexer/src/main.rs
index e6f83eb9e0d738..09210840ffb56a 100644
--- a/crates/sui-bridge-indexer/src/main.rs
+++ b/crates/sui-bridge-indexer/src/main.rs
@@ -75,7 +75,7 @@ async fn main() -> Result<()> {
 
     let contract_addresses = HashMap::from_iter(vec![(bridge_address, config.start_block)]);
 
-    let (_task_handles, mut eth_events_rx, _) = EthSyncer::new(eth_client, contract_addresses)
+    let (_task_handles, eth_events_rx, _) = EthSyncer::new(eth_client, contract_addresses)
         .run()
         .await
         .expect("Failed to start eth syncer");
diff --git a/crates/sui-bridge-indexer/src/migrations/00000000000000_diesel_initial_setup/up.sql b/crates/sui-bridge-indexer/src/migrations/00000000000000_diesel_initial_setup/up.sql
index 8b4705b439b793..fffdaa5e6234b1 100644
--- a/crates/sui-bridge-indexer/src/migrations/00000000000000_diesel_initial_setup/up.sql
+++ b/crates/sui-bridge-indexer/src/migrations/00000000000000_diesel_initial_setup/up.sql
@@ -21,5 +21,6 @@ CREATE TABLE token_transfer
     timestamp_ms                BIGINT       NOT NULL,
     txn_hash                    bytea        NOT NULL,
     gas_usage                   BIGINT       NOT NULL,
+    data_source                 TEXT         NOT NULL,
     PRIMARY KEY(chain_id, nonce, status)
 );
\ No newline at end of file
diff --git a/crates/sui-bridge-indexer/src/models.rs b/crates/sui-bridge-indexer/src/models.rs
index 09e4949fe36888..ee0bcc88ab6462 100644
--- a/crates/sui-bridge-indexer/src/models.rs
+++ b/crates/sui-bridge-indexer/src/models.rs
@@ -14,6 +14,7 @@ pub struct TokenTransfer {
     pub timestamp_ms: i64,
     pub txn_hash: Vec<u8>,
     pub gas_usage: i64,
+    pub data_source: String,
 }
 
 #[derive(Queryable, Selectable, Insertable, Identifiable, Debug)]
diff --git a/crates/sui-bridge-indexer/src/schema.rs b/crates/sui-bridge-indexer/src/schema.rs
index f9b31f003822a8..e13e095c226544 100644
--- a/crates/sui-bridge-indexer/src/schema.rs
+++ b/crates/sui-bridge-indexer/src/schema.rs
@@ -12,6 +12,7 @@ diesel::table! {
         timestamp_ms -> Int8,
         txn_hash -> Bytea,
         gas_usage -> Int8,
+        data_source -> Text,
     }
 }
 
diff --git a/crates/sui-bridge-indexer/src/worker.rs b/crates/sui-bridge-indexer/src/worker.rs
index a7b28c2bc1dd66..d84d3a473be998 100644
--- a/crates/sui-bridge-indexer/src/worker.rs
+++ b/crates/sui-bridge-indexer/src/worker.rs
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use crate::postgres_writer::{get_connection_pool, write, PgPool};
-use crate::{TokenTransfer, TokenTransferData, TokenTransferStatus};
+use crate::{BridgeDataSource, TokenTransfer, TokenTransferData, TokenTransferStatus};
 use anyhow::Result;
 use async_trait::async_trait;
 use ethers::providers::Provider;
@@ -74,6 +74,7 @@ impl BridgeWorker {
                                 txn_hash: tx.transaction.digest().inner().to_vec(),
                                 status: TokenTransferStatus::Deposited,
                                 gas_usage: tx.effects.gas_cost_summary().net_gas_usage(),
+                                data_source: BridgeDataSource::SUI,
                                 data: Some(TokenTransferData {
                                     sender_address: event.sender_address,
                                     destination_chain: event.target_chain,
@@ -95,6 +96,7 @@ impl BridgeWorker {
                                 txn_hash: tx.transaction.digest().inner().to_vec(),
                                 status: TokenTransferStatus::Approved,
                                 gas_usage: tx.effects.gas_cost_summary().net_gas_usage(),
+                                data_source: BridgeDataSource::SUI,
                                 data: None,
                             })
                         }
@@ -110,6 +112,7 @@ impl BridgeWorker {
                                 txn_hash: tx.transaction.digest().inner().to_vec(),
                                 status: TokenTransferStatus::Claimed,
                                 gas_usage: tx.effects.gas_cost_summary().net_gas_usage(),
+                                data_source: BridgeDataSource::SUI,
                                 data: None,
                             })
                         }
@@ -163,6 +166,7 @@ pub async fn process_eth_transaction(
                             txn_hash: tx_hash.as_bytes().to_vec(),
                             status: TokenTransferStatus::Deposited,
                             gas_usage: gas.as_u64() as i64,
+                            data_source: BridgeDataSource::ETH,
                             data: Some(TokenTransferData {
                                 sender_address: bridge_event.sender_address.as_bytes().to_vec(),
                                 destination_chain: bridge_event.destination_chain_id,
@@ -184,15 +188,16 @@ pub async fn process_eth_transaction(
                             txn_hash: tx_hash.as_bytes().to_vec(),
                             status: TokenTransferStatus::Claimed,
                             gas_usage: gas.as_u64() as i64,
+                            data_source: BridgeDataSource::ETH,
                             data: None,
                         };
 
                         write(&pool, transfer);
                     }
-                    EthSuiBridgeEvents::PausedFilter(_bridge_event) => (),
-                    EthSuiBridgeEvents::UnpausedFilter(_bridge_event) => (),
-                    EthSuiBridgeEvents::UpgradedFilter(_bridge_event) => (),
-                    EthSuiBridgeEvents::InitializedFilter(_bridge_event) => (),
+                    EthSuiBridgeEvents::PausedFilter(_)
+                    | EthSuiBridgeEvents::UnpausedFilter(_)
+                    | EthSuiBridgeEvents::UpgradedFilter(_)
+                    | EthSuiBridgeEvents::InitializedFilter(_) => (),
                 },
             }
         }