diff --git a/pageserver/src/tenant/storage_layer/delta_layer.rs b/pageserver/src/tenant/storage_layer/delta_layer.rs
index c5b5e5c98f..a4b2b4f840 100644
--- a/pageserver/src/tenant/storage_layer/delta_layer.rs
+++ b/pageserver/src/tenant/storage_layer/delta_layer.rs
@@ -728,6 +728,9 @@ impl DeltaLayerInner {
             // production code path
             expected_summary.index_start_blk = actual_summary.index_start_blk;
             expected_summary.index_root_blk = actual_summary.index_root_blk;
+            // mask out the timeline_id, but still require the layers to be from the same tenant
+            expected_summary.timeline_id = actual_summary.timeline_id;
+
             if actual_summary != expected_summary {
                 bail!(
                     "in-file summary does not match expected summary. actual = {:?} expected = {:?}",
diff --git a/pageserver/src/tenant/storage_layer/image_layer.rs b/pageserver/src/tenant/storage_layer/image_layer.rs
index 5b44d2bc2c..6f46a0203b 100644
--- a/pageserver/src/tenant/storage_layer/image_layer.rs
+++ b/pageserver/src/tenant/storage_layer/image_layer.rs
@@ -396,6 +396,8 @@ impl ImageLayerInner {
             // production code path
             expected_summary.index_start_blk = actual_summary.index_start_blk;
             expected_summary.index_root_blk = actual_summary.index_root_blk;
+            // mask out the timeline_id, but still require the layers to be from the same tenant
+            expected_summary.timeline_id = actual_summary.timeline_id;
 
             if actual_summary != expected_summary {
                 bail!(