diff --git a/prdoc/pr_10451.prdoc b/prdoc/pr_10451.prdoc
new file mode 100644
index 000000000000..a6e9e77794da
--- /dev/null
+++ b/prdoc/pr_10451.prdoc
@@ -0,0 +1,7 @@
+title: Accept custom capacity for block notifier buffer
+doc:
+- audience: Runtime Dev
+  description: Add a setter for a custom block notifier
+crates:
+- name: pallet-revive-eth-rpc
+  bump: minor
diff --git a/substrate/frame/revive/rpc/src/client.rs b/substrate/frame/revive/rpc/src/client.rs
index 2557e9b97d16..2516bc574ec1 100644
--- a/substrate/frame/revive/rpc/src/client.rs
+++ b/substrate/frame/revive/rpc/src/client.rs
@@ -261,6 +261,11 @@ impl Client {
 		self.block_notifier = Some(tokio::sync::broadcast::channel::<H256>(NOTIFIER_CAPACITY).0);
 	}
 
+	/// Sets a block notifier
+	pub fn set_block_notifier(&mut self, notifier: Option<tokio::sync::broadcast::Sender<H256>>) {
+		self.block_notifier = notifier;
+	}
+
 	/// Subscribe to past blocks executing the callback for each block in `range`.
 	async fn subscribe_past_blocks<F, Fut>(
 		&self,