diff --git a/ethcore/src/service.rs b/ethcore/src/service.rs
index 9389f1db1..db0260b06 100644
--- a/ethcore/src/service.rs
+++ b/ethcore/src/service.rs
@@ -124,8 +124,6 @@ impl IoHandler<NetSyncMessage> for ClientIoHandler {
 	}
 }
 
-// TODO: rewrite into something that doesn't dependent on the testing environment having a particular port ready for use.
-/*
 #[cfg(test)]
 mod tests {
 	use super::*;
@@ -136,8 +134,7 @@ mod tests {
 	fn it_can_be_started() {
 		let spec = get_test_spec();
 		let temp_path = RandomTempPath::new();
-		let service = ClientService::start(spec, NetworkConfiguration::new(), &temp_path.as_path());
+		let service = ClientService::start(spec, NetworkConfiguration::new_with_port(40456), &temp_path.as_path());
 		assert!(service.is_ok());
 	}
 }
-*/
\ No newline at end of file