diff --git a/book/developers/exex/hello-world.md b/book/developers/exex/hello-world.md
index 6ee68807d..b15a203cd 100644
--- a/book/developers/exex/hello-world.md
+++ b/book/developers/exex/hello-world.md
@@ -66,7 +66,7 @@ use reth_exex::{ExExContext, ExExEvent, ExExNotification};
 use reth_node_ethereum::EthereumNode;
 use reth_tracing::tracing::info;
 
-async fn my_exex<Node: FullNodeComponents>(mut ctx: ExExContext<Node>) -> eyre::Result<()> {
+async fn my_exex<Node: FullNodeComponents>(mut _ctx: ExExContext<Node>) -> eyre::Result<()> {
     loop {}
 }