diff --git a/system_tests/common_test.go b/system_tests/common_test.go
index f89fea2733..9f2a2bb2be 100644
--- a/system_tests/common_test.go
+++ b/system_tests/common_test.go
@@ -1143,8 +1143,8 @@ func createTestL1BlockChain(t *testing.T, l1info info) (info, *ethclient.Client,
 	return l1info, l1Client, l1backend, stack
 }
 
-func getInitMessage(ctx context.Context, t *testing.T, l1client client, addresses *chaininfo.RollupAddresses) *arbostypes.ParsedInitMessage {
-	bridge, err := arbnode.NewDelayedBridge(l1client, addresses.Bridge, addresses.DeployedAt)
+func getInitMessage(ctx context.Context, t *testing.T, parentChainClient client, addresses *chaininfo.RollupAddresses) *arbostypes.ParsedInitMessage {
+	bridge, err := arbnode.NewDelayedBridge(parentChainClient, addresses.Bridge, addresses.DeployedAt)
 	Require(t, err)
 	deployedAtBig := arbmath.UintToBig(addresses.DeployedAt)
 	messages, err := bridge.LookupMessagesInRange(ctx, deployedAtBig, deployedAtBig, nil)