diff --git a/pageserver/src/metrics.rs b/pageserver/src/metrics.rs
index 078d12f934..162e8d1836 100644
--- a/pageserver/src/metrics.rs
+++ b/pageserver/src/metrics.rs
@@ -1383,7 +1383,7 @@ impl SmgrQueryTimePerTimeline {
         &'a self,
         op: SmgrQueryType,
         ctx: &'c RequestContext,
-    ) -> Option<impl Drop + '_> {
+    ) -> Option<impl Drop + 'a> {
         let start = Instant::now();
 
         self.global_started[op as usize].inc();
@@ -1534,7 +1534,7 @@ impl BasebackupQueryTime {
     pub(crate) fn start_recording<'c: 'a, 'a>(
         &'a self,
         ctx: &'c RequestContext,
-    ) -> BasebackupQueryTimeOngoingRecording<'_, '_> {
+    ) -> BasebackupQueryTimeOngoingRecording<'a, 'a> {
         let start = Instant::now();
         match ctx.micros_spent_throttled.open() {
             Ok(()) => (),
diff --git a/pageserver/src/tenant.rs b/pageserver/src/tenant.rs
index be69f3d67f..5ed63734f4 100644
--- a/pageserver/src/tenant.rs
+++ b/pageserver/src/tenant.rs
@@ -3627,7 +3627,7 @@ impl Tenant {
         start_lsn: Lsn,
         ancestor: Option<Arc<Timeline>>,
         last_aux_file_policy: Option<AuxFilePolicy>,
-    ) -> anyhow::Result<UninitializedTimeline> {
+    ) -> anyhow::Result<UninitializedTimeline<'a>> {
         let tenant_shard_id = self.tenant_shard_id;
 
         let resources = self.build_timeline_resources(new_timeline_id);