diff --git a/cmd/crates/soroban-test/tests/it/integration/hello_world.rs b/cmd/crates/soroban-test/tests/it/integration/hello_world.rs
index c6e30b1fa..e91a7f181 100644
--- a/cmd/crates/soroban-test/tests/it/integration/hello_world.rs
+++ b/cmd/crates/soroban-test/tests/it/integration/hello_world.rs
@@ -398,3 +398,47 @@ fn invoke_log(sandbox: &TestEnv, id: &str) {
             r#"Log: {"vec":[{"string":"hello {}"},{"symbol":"world"}]}"#,
         ));
 }
+
+#[tokio::test]
+async fn invoke_auth_uses_hd_path_for_addr_alias() {
+    let sandbox = &TestEnv::new();
+
+    // Fund path 1 of the "test" seed (path 0 is funded by default)
+    sandbox
+        .new_assert_cmd("keys")
+        .arg("fund")
+        .arg("test")
+        .arg("--hd-path=1")
+        .assert()
+        .success();
+
+    let addr_1 = sandbox
+        .new_assert_cmd("keys")
+        .arg("address")
+        .arg("test")
+        .arg("--hd-path=1")
+        .assert()
+        .stdout_as_str();
+
+    let id = &deploy_hello(sandbox).await;
+    extend_contract(sandbox, id).await;
+
+    // --hd-path=1 must propagate to --addr alias resolution AND the auth signer.
+    // The contract's auth function returns the Address it was called with, so
+    // the output must be addr_1 (path 1), not path 0.
+    sandbox
+        .new_assert_cmd("contract")
+        .arg("invoke")
+        .arg("--source")
+        .arg("test")
+        .arg("--hd-path=1")
+        .arg("--id")
+        .arg(id)
+        .arg("--")
+        .arg("auth")
+        .arg("--addr=test")
+        .arg("--world=world")
+        .assert()
+        .stdout(format!("\"{addr_1}\"\n"))
+        .success();
+}
diff --git a/cmd/soroban-cli/src/commands/contract/arg_parsing.rs b/cmd/soroban-cli/src/commands/contract/arg_parsing.rs
index 28305b083..86297b456 100644
--- a/cmd/soroban-cli/src/commands/contract/arg_parsing.rs
+++ b/cmd/soroban-cli/src/commands/contract/arg_parsing.rs
@@ -447,7 +447,11 @@ fn resolve_address(addr_or_alias: &str, config: &config::Args) -> Result<String,
     let account = match sc_address {
         UnresolvedScAddress::Resolved(addr) => addr.to_string(),
         addr @ UnresolvedScAddress::Alias(_) => {
-            let addr = addr.resolve(&config.locator, &config.get_network()?.network_passphrase)?;
+            let addr = addr.resolve(
+                &config.locator,
+                &config.get_network()?.network_passphrase,
+                config.hd_path(),
+            )?;
             match addr {
                 xdr::ScAddress::Account(account) => account.to_string(),
                 contract @ xdr::ScAddress::Contract(_) => contract.to_string(),
@@ -467,7 +471,7 @@ fn resolve_address(addr_or_alias: &str, config: &config::Args) -> Result<String,
 async fn resolve_signer(addr_or_alias: &str, config: &config::Args) -> Option<Signer> {
     let secret = config.locator.get_secret_key(addr_or_alias).ok()?;
     let print = Print::new(false);
-    let signer = secret.signer(None, print).await.ok()?;
+    let signer = secret.signer(config.hd_path(), print).await.ok()?;
     Some(signer)
 }
 
diff --git a/cmd/soroban-cli/src/config/mod.rs b/cmd/soroban-cli/src/config/mod.rs
index 7eb79fff4..e3eb22a97 100644
--- a/cmd/soroban-cli/src/config/mod.rs
+++ b/cmd/soroban-cli/src/config/mod.rs
@@ -94,7 +94,7 @@ impl Args {
     pub async fn source_signer(&self) -> Result<Signer, Error> {
         let print = Print::new(true);
         let secret = &self.source_account.resolve_secret(&self.locator)?;
-        Ok(secret.signer(None, print).await?)
+        Ok(secret.signer(self.hd_path(), print).await?)
     }
 
     pub fn key_pair(&self) -> Result<ed25519_dalek::SigningKey, Error> {
diff --git a/cmd/soroban-cli/src/config/sc_address.rs b/cmd/soroban-cli/src/config/sc_address.rs
index f5ac8ba7a..b5aecfff4 100644
--- a/cmd/soroban-cli/src/config/sc_address.rs
+++ b/cmd/soroban-cli/src/config/sc_address.rs
@@ -44,6 +44,7 @@ impl UnresolvedScAddress {
         self,
         locator: &locator::Args,
         network_passphrase: &str,
+        hd_path: Option<usize>,
     ) -> Result<xdr::ScAddress, Error> {
         let alias = match self {
             UnresolvedScAddress::Resolved(addr) => return Ok(addr),
@@ -64,7 +65,7 @@ impl UnresolvedScAddress {
                 xdr::Hash(contract.0),
             ))),
             (_, Ok(key)) => Ok(xdr::ScAddress::Account(
-                key.muxed_account(None)?.account_id(),
+                key.muxed_account(hd_path)?.account_id(),
             )),
             _ => Err(Error::AccountAliasNotFound(alias)),
         }