diff --git a/Cargo.lock b/Cargo.lock
index 0adfe47..fd60b2d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -570,6 +570,7 @@ version = "0.1.0"
 dependencies = [
  "bincode",
  "clap",
+ "ed25519-dalek",
  "hex-literal",
  "keyfork-derive-util",
  "keyfork-frame",
diff --git a/keyfork-derive-util/src/tests.rs b/keyfork-derive-util/src/tests.rs
index eb529fd..69ea610 100644
--- a/keyfork-derive-util/src/tests.rs
+++ b/keyfork-derive-util/src/tests.rs
@@ -111,3 +111,16 @@ fn ed25519() {
         assert_eq!(response.data, private_key);
     }
 }
+
+#[cfg(feature = "ed25519")]
+#[test]
+#[should_panic]
+fn panics_at_depth() {
+    use ed25519_dalek::SigningKey;
+
+    let seed = hex!("000102030405060708090a0b0c0d0e0f");
+    let mut xkey = ExtendedPrivateKey::<SigningKey>::new(seed).unwrap();
+    for i in 0..u32::from(u8::MAX) + 1 {
+        xkey = xkey.derive_child(&DerivationIndex::new(i, true).unwrap()).unwrap();
+    }
+}
diff --git a/keyfork-seed/Cargo.toml b/keyfork-seed/Cargo.toml
index 8d0df7a..88e67a7 100644
--- a/keyfork-seed/Cargo.toml
+++ b/keyfork-seed/Cargo.toml
@@ -13,6 +13,7 @@ keyfork-frame = { version = "0.1.0", path = "../keyfork-frame", default-features
 thiserror = "1.0.48"
 
 [dev-dependencies]
+ed25519-dalek = "2.0.0"
 hex-literal = "0.4.1"
 keyforkd = { path = "../keyforkd", default-features = false }
 tempdir = "0.3.7"
diff --git a/keyfork-seed/src/tests.rs b/keyfork-seed/src/tests.rs
index 90bdd17..42d98ad 100644
--- a/keyfork-seed/src/tests.rs
+++ b/keyfork-seed/src/tests.rs
@@ -1,10 +1,10 @@
 use crate::client::Client;
 use hex_literal::hex;
-use keyfork_derive_util::{request::*, DerivationPath};
+use keyfork_derive_util::{request::*, DerivationPath, DerivationIndex, ExtendedPrivateKey};
+use std::sync::mpsc::channel;
 use std::{os::unix::net::UnixStream, str::FromStr};
 use tempdir::TempDir;
 use tokio::runtime::Builder;
-use std::sync::mpsc::channel;
 
 #[test]
 fn it_works() {
@@ -45,3 +45,47 @@ fn it_works() {
     );
     handle.abort();
 }
+
+#[test]
+fn misc_multi_requests() {
+    // Setup
+    let entropy = &hex!("000102030405060708090a0b0c0d0e0f")[..];
+    let mnemonic = keyforkd::Mnemonic::from_entropy(entropy, Default::default()).unwrap();
+    let rt = Builder::new_multi_thread().enable_io().build().unwrap();
+    let tempdir = TempDir::new("keyfork-seed").unwrap();
+    let socket_path = tempdir.path().join("keyforkd.sock");
+    let (tx, rx) = channel();
+
+    let handle = rt.spawn({
+        let socket_path = socket_path.clone();
+        async move {
+            let mut server = keyforkd::UnixServer::bind(&socket_path).unwrap();
+            // Connections can be pending for a few seconds, so signal to the main
+            // test we're ready to start accepting.
+            tx.send(()).unwrap();
+            let service = keyforkd::ServiceBuilder::new()
+                .layer(keyforkd::middleware::BincodeLayer::new())
+                .service(keyforkd::Keyforkd::new(mnemonic));
+            server.run(service).await.unwrap();
+        }
+    });
+
+    rx.recv().unwrap();
+    let socket = UnixStream::connect(&socket_path).unwrap();
+    let mut client = Client::new(socket);
+    let req = DerivationRequest::new(
+        DerivationAlgorithm::Ed25519,
+        DerivationPath::from_str("m/7366512'/0'").unwrap(),
+    );
+    let response = client.request(&req).unwrap();
+    let key = ExtendedPrivateKey::<ed25519_dalek::SigningKey>::new_from_parts(
+        &response.data,
+        response.depth,
+        response.chain_code,
+    ).unwrap();
+
+    for i in 0..255 {
+        key.derive_child(&DerivationIndex::new(i, true).unwrap()).unwrap();
+    }
+    handle.abort();
+}