diff --git a/amm/drink-tests/src/router_v2_tests.rs b/amm/drink-tests/src/router_v2_tests.rs
index fe291f9..7a9252a 100644
--- a/amm/drink-tests/src/router_v2_tests.rs
+++ b/amm/drink-tests/src/router_v2_tests.rs
@@ -41,7 +41,7 @@ fn setup_router(
 fn test_cache_stable_pool(mut session: Session) {
     upload_all(&mut session);
 
-    // Fix timestamp. Otherwise underlying UNIX clock is used.
+    // Fix timestamp. Otherwise, underlying UNIX clock is used.
     let now = get_timestamp(&mut session);
     set_timestamp(&mut session, now);
 
@@ -158,7 +158,6 @@ fn test_cache_stable_pool_with_add_liquidity(mut session: Session) {
         1,
         initial_reserves.clone(),
         bob(),
-        false,
         0,
         BOB,
     )
@@ -1012,7 +1011,6 @@ fn test_stable_pool_liqudity(mut session: Session) {
         1,
         initial_reserves.clone(),
         bob(),
-        false,
         0,
         BOB,
     )
@@ -1036,7 +1034,6 @@ fn test_stable_pool_liqudity(mut session: Session) {
         max_share,
         to_withdraw,
         bob(),
-        false,
         BOB,
     )
     .expect("Should successfully add liquidity");
@@ -1053,7 +1050,6 @@ fn test_stable_pool_liqudity(mut session: Session) {
         share_amount,
         min_amounts,
         bob(),
-        false,
         BOB,
     )
     .expect("Should successfully add liquidity");
@@ -1120,7 +1116,6 @@ fn test_stable_pool_liqudity_native(mut session: Session) {
         1,
         initial_reserves.clone(),
         bob(),
-        true,
         initial_reserves[0],
         BOB,
     )
@@ -1150,7 +1145,6 @@ fn test_stable_pool_liqudity_native(mut session: Session) {
         max_share,
         to_withdraw,
         bob(),
-        true,
         BOB,
     )
     .expect("Should successfully add liquidity");
@@ -1167,7 +1161,6 @@ fn test_stable_pool_liqudity_native(mut session: Session) {
         share_amount,
         min_amounts,
         bob(),
-        true,
         BOB,
     )
     .expect("Should successfully add liquidity");
diff --git a/amm/drink-tests/src/utils.rs b/amm/drink-tests/src/utils.rs
index fd438b1..583c893 100644
--- a/amm/drink-tests/src/utils.rs
+++ b/amm/drink-tests/src/utils.rs
@@ -350,7 +350,6 @@ pub mod router_v2 {
         min_share_amount: u128,
         amounts: Vec<u128>,
         to: AccountId,
-        native: bool,
         native_amount: u128,
         caller: drink::AccountId32,
     ) -> Result<(u128, u128), RouterV2Error> {
@@ -367,7 +366,6 @@ pub mod router_v2 {
                         amounts,
                         to,
                         deadline,
-                        native,
                     )
                     .with_value(native_amount),
             )
@@ -383,7 +381,6 @@ pub mod router_v2 {
         max_share_amount: u128,
         amounts: Vec<u128>,
         to: AccountId,
-        native: bool,
         caller: drink::AccountId32,
     ) -> Result<(u128, u128), RouterV2Error> {
         let now = get_timestamp(session);
@@ -398,7 +395,6 @@ pub mod router_v2 {
                     amounts,
                     to,
                     deadline,
-                    native,
                 ),
             )
             .unwrap()
@@ -413,7 +409,6 @@ pub mod router_v2 {
         share_amount: u128,
         min_amounts: Vec<u128>,
         to: AccountId,
-        native: bool,
         caller: drink::AccountId32,
     ) -> Result<Vec<u128>, RouterV2Error> {
         let now = get_timestamp(session);
@@ -428,7 +423,6 @@ pub mod router_v2 {
                     min_amounts,
                     to,
                     deadline,
-                    native,
                 ),
             )
             .unwrap()