diff --git a/src/Storages/MergeTree/MergeTreeMarksLoader.cpp b/src/Storages/MergeTree/MergeTreeMarksLoader.cpp
index 0052cd79b64..500c48a3884 100644
--- a/src/Storages/MergeTree/MergeTreeMarksLoader.cpp
+++ b/src/Storages/MergeTree/MergeTreeMarksLoader.cpp
@@ -98,7 +98,7 @@ MarkCache::MappedPtr MergeTreeMarksLoader::loadMarksImpl()
             ++i;
         }
 
-        if (i * mark_size != file_size)
+        if (i * mark_size != expected_uncompressed_size)
             throw Exception("Cannot read all marks from file " + mrk_path, ErrorCodes::CANNOT_READ_ALL_DATA);
     }
 
diff --git a/src/Storages/MergeTree/MergeTreeMarksLoader.h b/src/Storages/MergeTree/MergeTreeMarksLoader.h
index b176571b6df..661a35374d4 100644
--- a/src/Storages/MergeTree/MergeTreeMarksLoader.h
+++ b/src/Storages/MergeTree/MergeTreeMarksLoader.h
@@ -1,8 +1,10 @@
 #pragma once
+
 #include <Storages/MergeTree/IDataPartStorage.h>
 #include <Storages/MarkCache.h>
 #include <IO/ReadSettings.h>
 
+
 namespace DB
 {
 
diff --git a/src/Storages/MergeTree/MergeTreeSettings.h b/src/Storages/MergeTree/MergeTreeSettings.h
index 47429d680bd..98bd9c1d34f 100644
--- a/src/Storages/MergeTree/MergeTreeSettings.h
+++ b/src/Storages/MergeTree/MergeTreeSettings.h
@@ -145,7 +145,7 @@ struct Settings;
     M(String, remote_fs_zero_copy_zookeeper_path, "/clickhouse/zero_copy", "ZooKeeper path for Zero-copy table-independet info.", 0) \
     M(Bool, remote_fs_zero_copy_path_compatible_mode, false, "Run zero-copy in compatible mode during conversion process.", 0) \
     \
-    /** compress marks and primary */ \
+    /** Compress marks and primary key. */ \
     M(Bool, compress_marks, false, "Marks support compression, reduce mark file size and speed up network transmission.", 0) \
     M(Bool, compress_primary_key, false, "Primary key support compression, reduce primary key file size and speed up network transmission.", 0) \
     M(String, marks_compression_codec, "ZSTD(3)", "Compression encoding used by marks, marks are small enough and cached, so the default compression is ZSTD(3).", 0) \