diff --git a/libs/pageserver_api/src/models.rs b/libs/pageserver_api/src/models.rs
index 4eb99c49aa..906e07e2f3 100644
--- a/libs/pageserver_api/src/models.rs
+++ b/libs/pageserver_api/src/models.rs
@@ -317,7 +317,7 @@ pub struct StatusResponse {
 #[derive(Serialize, Deserialize, Debug)]
 #[serde(deny_unknown_fields)]
 pub struct TenantLocationConfigRequest {
-    pub tenant_id: TenantId,
+    pub tenant_id: TenantShardId,
     #[serde(flatten)]
     pub config: LocationConfig, // as we have a flattened field, we should reject all unknown fields in it
 }
diff --git a/pageserver/client/src/mgmt_api.rs b/pageserver/client/src/mgmt_api.rs
index 44cef08095..5df11676b4 100644
--- a/pageserver/client/src/mgmt_api.rs
+++ b/pageserver/client/src/mgmt_api.rs
@@ -179,7 +179,10 @@ impl Client {
         config: LocationConfig,
         flush_ms: Option<std::time::Duration>,
     ) -> Result<()> {
-        let req_body = TenantLocationConfigRequest { tenant_id, config };
+        let req_body = TenantLocationConfigRequest {
+            tenant_id: tenant_shard_id,
+            config,
+        };
         let path = format!(
             "{}/v1/tenant/{}/location_config",
             self.mgmt_api_endpoint, tenant_id