diff --git a/test_runner/fixtures/neon_fixtures.py b/test_runner/fixtures/neon_fixtures.py
index 7ecd7f334978..6833b60da5e6 100644
--- a/test_runner/fixtures/neon_fixtures.py
+++ b/test_runner/fixtures/neon_fixtures.py
@@ -4102,24 +4102,21 @@ def list_files_to_compare(pgdata_dir: Path) -> List[str]:
 
 # pg is the existing and running compute node, that we want to compare with a basebackup
 def check_restored_datadir_content(test_output_dir: Path, env: NeonEnv, endpoint: Endpoint):
+    pg_bin = PgBin(test_output_dir, env.pg_distrib_dir, env.pg_version)
+
     # Get the timeline ID. We need it for the 'basebackup' command
     timeline_id = TimelineId(endpoint.safe_psql("SHOW neon.timeline_id")[0][0])
 
-    # many tests already checkpoint, but do it just in case
-    with closing(endpoint.connect()) as conn:
-        with conn.cursor() as cur:
-            cur.execute("CHECKPOINT")
-
-    # wait for pageserver to catch up
-    wait_for_last_flush_lsn(env, endpoint, endpoint.tenant_id, timeline_id)
     # stop postgres to ensure that files won't change
     endpoint.stop()
 
+    # Read the shutdown checkpoint's LSN
+    checkpoint_lsn = pg_bin.get_pg_controldata_checkpoint_lsn(endpoint.pg_data_dir_path())
+
     # Take a basebackup from pageserver
     restored_dir_path = env.repo_dir / f"{endpoint.endpoint_id}_restored_datadir"
     restored_dir_path.mkdir(exist_ok=True)
 
-    pg_bin = PgBin(test_output_dir, env.pg_distrib_dir, env.pg_version)
     psql_path = os.path.join(pg_bin.pg_bin_path, "psql")
 
     pageserver_id = env.attachment_service.locate(endpoint.tenant_id)[0]["node_id"]
@@ -4127,7 +4124,7 @@ def check_restored_datadir_content(test_output_dir: Path, env: NeonEnv, endpoint
         {psql_path}                                    \
             --no-psqlrc                                \
             postgres://localhost:{env.get_pageserver(pageserver_id).service_port.pg}  \
-            -c 'basebackup {endpoint.tenant_id} {timeline_id}'  \
+            -c 'basebackup {endpoint.tenant_id} {timeline_id} {checkpoint_lsn}'  \
          | tar -x -C {restored_dir_path}
     """