diff --git a/pageserver/client/src/mgmt_api.rs b/pageserver/client/src/mgmt_api.rs
index ab55d2b0a37c..3c9982ffb8c1 100644
--- a/pageserver/client/src/mgmt_api.rs
+++ b/pageserver/client/src/mgmt_api.rs
@@ -128,12 +128,12 @@ impl Client {
 
     pub async fn timeline_info(
         &self,
-        tenant_id: TenantId,
+        tenant_shard_id: TenantShardId,
         timeline_id: TimelineId,
         force_await_logical_size: ForceAwaitLogicalSize,
     ) -> Result<pageserver_api::models::TimelineInfo> {
         let uri = format!(
-            "{}/v1/tenant/{tenant_id}/timeline/{timeline_id}",
+            "{}/v1/tenant/{tenant_shard_id}/timeline/{timeline_id}",
             self.mgmt_api_endpoint
         );
 
@@ -151,11 +151,11 @@ impl Client {
 
     pub async fn keyspace(
         &self,
-        tenant_id: TenantId,
+        tenant_shard_id: TenantShardId,
         timeline_id: TimelineId,
     ) -> Result<pageserver_api::models::partitioning::Partitioning> {
         let uri = format!(
-            "{}/v1/tenant/{tenant_id}/timeline/{timeline_id}/keyspace",
+            "{}/v1/tenant/{tenant_shard_id}/timeline/{timeline_id}/keyspace",
             self.mgmt_api_endpoint
         );
         self.get(&uri)
diff --git a/pageserver/pagebench/src/cmd/basebackup.rs b/pageserver/pagebench/src/cmd/basebackup.rs
index 55844be04181..3ae6d99aa72b 100644
--- a/pageserver/pagebench/src/cmd/basebackup.rs
+++ b/pageserver/pagebench/src/cmd/basebackup.rs
@@ -1,4 +1,5 @@
 use anyhow::Context;
+use pageserver_api::shard::TenantShardId;
 use pageserver_client::mgmt_api::ForceAwaitLogicalSize;
 use pageserver_client::page_service::BasebackupRequest;
 
@@ -95,7 +96,7 @@ async fn main_impl(
             let timeline = *timeline;
             let info = mgmt_api_client
                 .timeline_info(
-                    timeline.tenant_id,
+                    TenantShardId::unsharded(timeline.tenant_id),
                     timeline.timeline_id,
                     ForceAwaitLogicalSize::No,
                 )
diff --git a/pageserver/pagebench/src/cmd/getpage_latest_lsn.rs b/pageserver/pagebench/src/cmd/getpage_latest_lsn.rs
index 2838511a77e3..c3d8e61a2cfd 100644
--- a/pageserver/pagebench/src/cmd/getpage_latest_lsn.rs
+++ b/pageserver/pagebench/src/cmd/getpage_latest_lsn.rs
@@ -4,6 +4,7 @@ use pageserver_api::key::{is_rel_block_key, key_to_rel_block, Key};
 use pageserver_api::keyspace::KeySpaceAccum;
 use pageserver_api::models::PagestreamGetPageRequest;
 
+use pageserver_api::shard::TenantShardId;
 use tokio_util::sync::CancellationToken;
 use utils::id::TenantTimelineId;
 use utils::lsn::Lsn;
@@ -173,7 +174,10 @@ async fn main_impl(
                 let timeline = *timeline;
                 async move {
                     let partitioning = mgmt_api_client
-                        .keyspace(timeline.tenant_id, timeline.timeline_id)
+                        .keyspace(
+                            TenantShardId::unsharded(timeline.tenant_id),
+                            timeline.timeline_id,
+                        )
                         .await?;
                     let lsn = partitioning.at_lsn;
                     let start = Instant::now();
diff --git a/pageserver/pagebench/src/cmd/trigger_initial_size_calculation.rs b/pageserver/pagebench/src/cmd/trigger_initial_size_calculation.rs
index 98938d780a71..f07beeecfd82 100644
--- a/pageserver/pagebench/src/cmd/trigger_initial_size_calculation.rs
+++ b/pageserver/pagebench/src/cmd/trigger_initial_size_calculation.rs
@@ -1,6 +1,7 @@
 use std::sync::Arc;
 
 use humantime::Duration;
+use pageserver_api::shard::TenantShardId;
 use tokio::task::JoinSet;
 use utils::id::TenantTimelineId;
 
@@ -59,7 +60,11 @@ async fn main_impl(args: Args) -> anyhow::Result<()> {
         let mgmt_api_client = Arc::clone(&mgmt_api_client);
         js.spawn(async move {
             let info = mgmt_api_client
-                .timeline_info(tl.tenant_id, tl.timeline_id, ForceAwaitLogicalSize::Yes)
+                .timeline_info(
+                    TenantShardId::unsharded(tl.tenant_id),
+                    tl.timeline_id,
+                    ForceAwaitLogicalSize::Yes,
+                )
                 .await
                 .unwrap();
 
@@ -74,7 +79,11 @@ async fn main_impl(args: Args) -> anyhow::Result<()> {
                 while !info.current_logical_size_is_accurate {
                     ticker.tick().await;
                     info = mgmt_api_client
-                        .timeline_info(tl.tenant_id, tl.timeline_id, ForceAwaitLogicalSize::Yes)
+                        .timeline_info(
+                            TenantShardId::unsharded(tl.tenant_id),
+                            tl.timeline_id,
+                            ForceAwaitLogicalSize::Yes,
+                        )
                         .await
                         .unwrap();
                 }