diff --git a/test_data/network_params.yaml b/test_data/network_params.yaml
index aa336b74..bf6d393e 100644
--- a/test_data/network_params.yaml
+++ b/test_data/network_params.yaml
@@ -2,7 +2,7 @@ participants:
   - el_type: geth
     cl_type: lighthouse
     count: 2
-  - el_type: ethereumrust
+  - el_type: ethereum_rust
     cl_type: lighthouse
     vc_count: 0
     validator_count: 0