diff --git a/crates/solvers/src/infra/dex/paraswap/dto.rs b/crates/solvers/src/infra/dex/paraswap/dto.rs
index 79c11c13f2..4b061d143d 100644
--- a/crates/solvers/src/infra/dex/paraswap/dto.rs
+++ b/crates/solvers/src/infra/dex/paraswap/dto.rs
@@ -46,6 +46,9 @@ pub struct PriceQuery {
 
     /// The network ID.
     pub network: String,
+
+    /// The partner name
+    pub partner: String,
 }
 
 impl PriceQuery {
@@ -70,6 +73,7 @@ impl PriceQuery {
             amount: order.amount.get(),
             exclude_dexs: config.exclude_dexs.clone(),
             network: "1".to_owned(),
+            partner: config.partner.clone(),
         })
     }
 }
diff --git a/crates/solvers/src/tests/paraswap/market_order.rs b/crates/solvers/src/tests/paraswap/market_order.rs
index 108e13958c..02f67e7556 100644
--- a/crates/solvers/src/tests/paraswap/market_order.rs
+++ b/crates/solvers/src/tests/paraswap/market_order.rs
@@ -11,7 +11,7 @@ async fn sell() {
     let api = mock::http::setup(vec![
         mock::http::Expectation::Get {
             path: mock::http::Path::exact(
-                "prices?srcToken=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&destToken=0xe41d2489571d322189246dafa5ebde1f4699f498&srcDecimals=18&destDecimals=18&amount=1000000000000000000&side=SELL&excludeDexs=UniswapV2&network=1",
+                "prices?srcToken=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&destToken=0xe41d2489571d322189246dafa5ebde1f4699f498&srcDecimals=18&destDecimals=18&amount=1000000000000000000&side=SELL&excludeDexs=UniswapV2&network=1&partner=cow",
             ),
             res: json!({
               "priceRoute": {
@@ -249,7 +249,7 @@ async fn buy() {
     let api = mock::http::setup(vec![
         mock::http::Expectation::Get {
             path: mock::http::Path::exact(
-                "prices?srcToken=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&destToken=0xe41d2489571d322189246dafa5ebde1f4699f498&srcDecimals=18&destDecimals=18&amount=1000000000000000000000&side=BUY&excludeDexs=UniswapV2&network=1",
+                "prices?srcToken=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&destToken=0xe41d2489571d322189246dafa5ebde1f4699f498&srcDecimals=18&destDecimals=18&amount=1000000000000000000000&side=BUY&excludeDexs=UniswapV2&network=1&partner=cow",
             ),
             res: json!({
               "priceRoute": {
diff --git a/crates/solvers/src/tests/paraswap/out_of_price.rs b/crates/solvers/src/tests/paraswap/out_of_price.rs
index 14b53e6b8a..fe78fdb580 100644
--- a/crates/solvers/src/tests/paraswap/out_of_price.rs
+++ b/crates/solvers/src/tests/paraswap/out_of_price.rs
@@ -14,7 +14,7 @@ async fn sell() {
     let api = mock::http::setup(vec![
         mock::http::Expectation::Get {
             path: mock::http::Path::exact(
-                "prices?srcToken=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&destToken=0xe41d2489571d322189246dafa5ebde1f4699f498&srcDecimals=18&destDecimals=18&amount=1000000000000000000&side=SELL&excludeDexs=UniswapV2&network=1",
+                "prices?srcToken=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&destToken=0xe41d2489571d322189246dafa5ebde1f4699f498&srcDecimals=18&destDecimals=18&amount=1000000000000000000&side=SELL&excludeDexs=UniswapV2&network=1&partner=cow",
             ),
             res: json!({
               "priceRoute": {
@@ -207,7 +207,7 @@ async fn buy() {
     let api = mock::http::setup(vec![
         mock::http::Expectation::Get {
             path: mock::http::Path::exact(
-                "prices?srcToken=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&destToken=0xe41d2489571d322189246dafa5ebde1f4699f498&srcDecimals=18&destDecimals=18&amount=1000000000000000000000&side=BUY&excludeDexs=UniswapV2&network=1",
+                "prices?srcToken=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&destToken=0xe41d2489571d322189246dafa5ebde1f4699f498&srcDecimals=18&destDecimals=18&amount=1000000000000000000000&side=BUY&excludeDexs=UniswapV2&network=1&partner=cow",
             ),
             res: json!({
               "priceRoute": {