diff --git a/substrate/core/network-libp2p/src/service_task.rs b/substrate/core/network-libp2p/src/service_task.rs
index f40170b00c..c11b7d8dbf 100644
--- a/substrate/core/network-libp2p/src/service_task.rs
+++ b/substrate/core/network-libp2p/src/service_task.rs
@@ -171,6 +171,7 @@ where TProtos: IntoIterator<Item = RegisteredProtocol> {
 }
 
 /// Event produced by the service.
+#[derive(Debug)]
 pub enum ServiceEvent {
 	/// Closed connection to a node.
 	///