diff --git a/beacon_node/beacon_chain/src/test_utils.rs b/beacon_node/beacon_chain/src/test_utils.rs
index 4048058fb..11bb35620 100644
--- a/beacon_node/beacon_chain/src/test_utils.rs
+++ b/beacon_node/beacon_chain/src/test_utils.rs
@@ -450,14 +450,14 @@ where
     }
 
     pub fn mock_execution_layer(self) -> Self {
-        self.mock_execution_layer_with_config()
+        self.mock_execution_layer_with_config(None)
     }
 
-    pub fn mock_execution_layer_with_config(mut self) -> Self {
+    pub fn mock_execution_layer_with_config(mut self, builder_threshold: Option<u128>) -> Self {
         let mock = mock_execution_layer_from_parts::<E>(
             self.spec.as_ref().expect("cannot build without spec"),
             self.runtime.task_executor.clone(),
-            None,
+            builder_threshold,
         );
         self.execution_layer = Some(mock.el.clone());
         self.mock_execution_layer = Some(mock);
diff --git a/beacon_node/http_api/tests/tests.rs b/beacon_node/http_api/tests/tests.rs
index 8a6634f80..a1576d33d 100644
--- a/beacon_node/http_api/tests/tests.rs
+++ b/beacon_node/http_api/tests/tests.rs
@@ -78,6 +78,7 @@ struct ApiTester {
 struct ApiTesterConfig {
     spec: ChainSpec,
     retain_historic_states: bool,
+    builder_threshold: Option<u128>,
 }
 
 impl Default for ApiTesterConfig {
@@ -87,6 +88,7 @@ impl Default for ApiTesterConfig {
         Self {
             spec,
             retain_historic_states: false,
+            builder_threshold: None,
         }
     }
 }
@@ -128,7 +130,7 @@ impl ApiTester {
             .logger(logging::test_logger())
             .deterministic_keypairs(VALIDATOR_COUNT)
             .fresh_ephemeral_store()
-            .mock_execution_layer_with_config()
+            .mock_execution_layer_with_config(config.builder_threshold)
             .build();
 
         harness
@@ -403,6 +405,7 @@ impl ApiTester {
 
     pub async fn new_mev_tester_no_builder_threshold() -> Self {
         let mut config = ApiTesterConfig {
+            builder_threshold: Some(0),
             retain_historic_states: false,
             spec: E::default_spec(),
         };
@@ -5350,6 +5353,7 @@ async fn builder_payload_chosen_by_profit() {
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
 async fn builder_works_post_capella() {
     let mut config = ApiTesterConfig {
+        builder_threshold: Some(0),
         retain_historic_states: false,
         spec: E::default_spec(),
     };
@@ -5370,6 +5374,7 @@ async fn builder_works_post_capella() {
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
 async fn builder_works_post_deneb() {
     let mut config = ApiTesterConfig {
+        builder_threshold: Some(0),
         retain_historic_states: false,
         spec: E::default_spec(),
     };