diff --git a/crates/op-rbuilder/src/integration/mod.rs b/crates/op-rbuilder/src/integration/mod.rs
index 11cd6d75c..14ce32704 100644
--- a/crates/op-rbuilder/src/integration/mod.rs
+++ b/crates/op-rbuilder/src/integration/mod.rs
@@ -240,10 +240,12 @@ impl TestHarnessBuilder {
     pub async fn build(self) -> eyre::Result<TestHarness> {
         let mut framework = IntegrationFramework::new(&self.name).unwrap();
 
-        // we are going to use a genesis file pre-generated before the test
-        let mut genesis_path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
-        genesis_path.push("../../genesis.json");
-        assert!(genesis_path.exists());
+        // we are going to use the fixture genesis and copy it to each test folder
+        let genesis = include_str!("../tester/fixtures/genesis.json.tmpl");
+
+        let mut genesis_path = framework.test_dir.clone();
+        genesis_path.push("genesis.json");
+        std::fs::write(&genesis_path, genesis)?;
 
         // create the builder
         let builder_data_dir = std::env::temp_dir().join(Uuid::new_v4().to_string());