diff --git a/src/Storages/MergeTree/MergeTreeData.cpp b/src/Storages/MergeTree/MergeTreeData.cpp
index d2b1da9abf8..a1e6c2a92d7 100644
--- a/src/Storages/MergeTree/MergeTreeData.cpp
+++ b/src/Storages/MergeTree/MergeTreeData.cpp
@@ -4523,6 +4523,7 @@ void MergeTreeData::restorePartFromBackup(std::shared_ptr<RestoredPartsHolder> r
         auto read_buffer = backup_entry->getReadBuffer();
         auto write_buffer = disk->writeFile(temp_part_dir / filename);
         copyData(*read_buffer, *write_buffer);
+        write_buffer->finalize();
         reservation->update(reservation->getSize() - backup_entry->getSize());
     }
 
diff --git a/src/Storages/StorageLog.cpp b/src/Storages/StorageLog.cpp
index 8ed33220507..b8920647244 100644
--- a/src/Storages/StorageLog.cpp
+++ b/src/Storages/StorageLog.cpp
@@ -1032,6 +1032,7 @@ void StorageLog::restoreDataImpl(const BackupPtr & backup, const String & data_p
             auto in = backup_entry->getReadBuffer();
             auto out = disk->writeFile(data_file.path, max_compress_block_size, WriteMode::Append);
             copyData(*in, *out);
+            out->finalize();
         }
 
         if (use_marks_file)
diff --git a/src/Storages/StorageStripeLog.cpp b/src/Storages/StorageStripeLog.cpp
index 92d53ffc1ac..62823f6dabd 100644
--- a/src/Storages/StorageStripeLog.cpp
+++ b/src/Storages/StorageStripeLog.cpp
@@ -626,6 +626,7 @@ void StorageStripeLog::restoreDataImpl(const BackupPtr & backup, const String &
             auto in = backup_entry->getReadBuffer();
             auto out = disk->writeFile(data_file_path, max_compress_block_size, WriteMode::Append);
             copyData(*in, *out);
+            out->finalize();
         }
 
         /// Append the index.