diff --git a/src/Storages/MergeTree/MergeTask.cpp b/src/Storages/MergeTree/MergeTask.cpp
index c32c4e32cd7..89fb27cc89c 100644
--- a/src/Storages/MergeTree/MergeTask.cpp
+++ b/src/Storages/MergeTree/MergeTask.cpp
@@ -241,9 +241,6 @@ bool MergeTask::ExecuteAndFinalizeHorizontalPart::prepare()
                 global_ctx->merging_column_names,
                 global_ctx->gathering_column_names);
 
-            if (global_ctx->data->getSettings()->fsync_part_directory)
-                global_ctx->sync_guard = ctx->disk->getDirectorySyncGuard(local_new_part_tmp_path);
-
             break;
         }
         default :
diff --git a/src/Storages/MergeTree/MergeTask.h b/src/Storages/MergeTree/MergeTask.h
index aa64c4c2265..d3fc01980ea 100644
--- a/src/Storages/MergeTree/MergeTask.h
+++ b/src/Storages/MergeTree/MergeTask.h
@@ -155,7 +155,6 @@ private:
         QueryPipeline merged_pipeline;
         std::unique_ptr<PullingPipelineExecutor> merging_executor;
 
-        SyncGuardPtr sync_guard{nullptr};
         MergeTreeData::MutableDataPartPtr new_data_part{nullptr};
 
         size_t rows_written{0};
diff --git a/src/Storages/MergeTree/MutateTask.cpp b/src/Storages/MergeTree/MutateTask.cpp
index 4adb1e9563a..c001b319c99 100644
--- a/src/Storages/MergeTree/MutateTask.cpp
+++ b/src/Storages/MergeTree/MutateTask.cpp
@@ -520,7 +520,6 @@ struct MutationContext
     DiskPtr disk;
     String new_part_tmp_path;
 
-    SyncGuardPtr sync_guard;
     IMergedBlockOutputStreamPtr out{nullptr};
 
     String mrk_extension;
@@ -1305,9 +1304,6 @@ bool MutateTask::prepare()
     ctx->disk = ctx->new_data_part->volume->getDisk();
     ctx->new_part_tmp_path = ctx->new_data_part->getFullRelativePath();
 
-    if (ctx->data->getSettings()->fsync_part_directory)
-        ctx->sync_guard = ctx->disk->getDirectorySyncGuard(ctx->new_part_tmp_path);
-
     /// Don't change granularity type while mutating subset of columns
     ctx->mrk_extension = ctx->source_part->index_granularity_info.is_adaptive ? getAdaptiveMrkExtension(ctx->new_data_part->getType())
                                                                          : getNonAdaptiveMrkExtension();
diff --git a/tests/queries/0_stateless/01643_merge_tree_fsync_smoke.reference b/tests/queries/0_stateless/01643_merge_tree_fsync_smoke.reference
index f57d5df6efd..613c455fc59 100644
--- a/tests/queries/0_stateless/01643_merge_tree_fsync_smoke.reference
+++ b/tests/queries/0_stateless/01643_merge_tree_fsync_smoke.reference
@@ -12,3 +12,4 @@ memory in_memory_parts_insert_sync
 1
 wide fsync_part_directory,vertical
 1
+2
diff --git a/tests/queries/0_stateless/01643_merge_tree_fsync_smoke.sql b/tests/queries/0_stateless/01643_merge_tree_fsync_smoke.sql
index 644cf063a33..598e1ef3c34 100644
--- a/tests/queries/0_stateless/01643_merge_tree_fsync_smoke.sql
+++ b/tests/queries/0_stateless/01643_merge_tree_fsync_smoke.sql
@@ -43,8 +43,10 @@ optimize table data_01643 final;
 drop table data_01643;
 
 select 'wide fsync_part_directory,vertical';
-create table data_01643 (key Int) engine=MergeTree() order by key settings min_bytes_for_wide_part=0, fsync_part_directory=1, enable_vertical_merge_algorithm=1, vertical_merge_algorithm_min_rows_to_activate=1, vertical_merge_algorithm_min_columns_to_activate=1;
+create table data_01643 (key Int) engine=MergeTree() order by key settings min_bytes_for_wide_part=0, fsync_part_directory=1, enable_vertical_merge_algorithm=1, vertical_merge_algorithm_min_rows_to_activate=0, vertical_merge_algorithm_min_columns_to_activate=0;
 insert into data_01643 values (1);
-select * from data_01643;
-optimize table data_01643 final;
+insert into data_01643 values (2);
+select * from data_01643 order by key;
+-- vertical merge does not supports deduplicate, hence no FINAL
+optimize table data_01643;
 drop table data_01643;