diff --git a/control_plane/src/local_env.rs b/control_plane/src/local_env.rs
index 2616afbb16..8e2a110366 100644
--- a/control_plane/src/local_env.rs
+++ b/control_plane/src/local_env.rs
@@ -15,7 +15,7 @@ use clap::ValueEnum;
 use postgres_backend::AuthType;
 use reqwest::Url;
 use serde::{Deserialize, Serialize};
-use utils::auth::{Claims, encode_from_key_file};
+use utils::auth::encode_from_key_file;
 use utils::id::{NodeId, TenantId, TenantTimelineId, TimelineId};
 
 use crate::object_storage::{OBJECT_STORAGE_REMOTE_STORAGE_DIR, ObjectStorage};
@@ -757,7 +757,7 @@ impl LocalEnv {
     }
 
     // this function is used only for testing purposes in CLI e g generate tokens during init
-    pub fn generate_auth_token(&self, claims: &Claims) -> anyhow::Result<String> {
+    pub fn generate_auth_token<S: Serialize>(&self, claims: &S) -> anyhow::Result<String> {
         let private_key_path = self.get_private_key_path();
         let key_data = fs::read(private_key_path)?;
         encode_from_key_file(claims, &key_data)
diff --git a/libs/utils/src/auth.rs b/libs/utils/src/auth.rs
index cc5b0b1d13..db4fc5685c 100644
--- a/libs/utils/src/auth.rs
+++ b/libs/utils/src/auth.rs
@@ -173,7 +173,7 @@ impl std::fmt::Debug for JwtAuth {
 }
 
 // this function is used only for testing purposes in CLI e g generate tokens during init
-pub fn encode_from_key_file(claims: &Claims, key_data: &[u8]) -> Result<String> {
+pub fn encode_from_key_file<S: Serialize>(claims: &S, key_data: &[u8]) -> Result<String> {
     let key = EncodingKey::from_ed_pem(key_data)?;
     Ok(encode(&Header::new(STORAGE_TOKEN_ALGORITHM), claims, &key)?)
 }