diff --git a/src/Storages/MergeTree/MergeTreeBaseSelectProcessor.cpp b/src/Storages/MergeTree/MergeTreeBaseSelectProcessor.cpp
index 68f754b08fb..9334baef964 100644
--- a/src/Storages/MergeTree/MergeTreeBaseSelectProcessor.cpp
+++ b/src/Storages/MergeTree/MergeTreeBaseSelectProcessor.cpp
@@ -53,7 +53,7 @@ MergeTreeBaseSelectProcessor::MergeTreeBaseSelectProcessor(
 
     if (prewhere_info)
     {
-        prewhere_actions = std::make_unique<PrewhereActions>();
+        prewhere_actions = std::make_unique<PrewhereExprInfo>();
         if (prewhere_info->alias_actions)
             prewhere_actions->alias_actions = std::make_shared<ExpressionActions>(prewhere_info->alias_actions, actions_settings);
 
diff --git a/src/Storages/MergeTree/MergeTreeBaseSelectProcessor.h b/src/Storages/MergeTree/MergeTreeBaseSelectProcessor.h
index 2ae39dbb058..8da9b002e16 100644
--- a/src/Storages/MergeTree/MergeTreeBaseSelectProcessor.h
+++ b/src/Storages/MergeTree/MergeTreeBaseSelectProcessor.h
@@ -13,7 +13,7 @@ namespace DB
 class IMergeTreeReader;
 class UncompressedCache;
 class MarkCache;
-struct PrewhereActions;
+struct PrewhereExprInfo;
 
 /// Base class for MergeTreeThreadSelectProcessor and MergeTreeSelectProcessor
 class MergeTreeBaseSelectProcessor : public SourceWithProgress
@@ -60,7 +60,7 @@ protected:
     StorageMetadataPtr metadata_snapshot;
 
     PrewhereInfoPtr prewhere_info;
-    std::unique_ptr<PrewhereActions> prewhere_actions;
+    std::unique_ptr<PrewhereExprInfo> prewhere_actions;
 
     UInt64 max_block_size_rows;
     UInt64 preferred_block_size_bytes;
diff --git a/src/Storages/MergeTree/MergeTreeRangeReader.cpp b/src/Storages/MergeTree/MergeTreeRangeReader.cpp
index 8072aa6a3dc..2347280a4a0 100644
--- a/src/Storages/MergeTree/MergeTreeRangeReader.cpp
+++ b/src/Storages/MergeTree/MergeTreeRangeReader.cpp
@@ -520,7 +520,7 @@ size_t MergeTreeRangeReader::ReadResult::countBytesInResultFilter(const IColumn:
 MergeTreeRangeReader::MergeTreeRangeReader(
     IMergeTreeReader * merge_tree_reader_,
     MergeTreeRangeReader * prev_reader_,
-    const PrewhereActions * prewhere_info_,
+    const PrewhereExprInfo * prewhere_info_,
     bool last_reader_in_chain_)
     : merge_tree_reader(merge_tree_reader_)
     , index_granularity(&(merge_tree_reader->data_part->index_granularity))
diff --git a/src/Storages/MergeTree/MergeTreeRangeReader.h b/src/Storages/MergeTree/MergeTreeRangeReader.h
index 7c36ca49c99..8cdf485ff1e 100644
--- a/src/Storages/MergeTree/MergeTreeRangeReader.h
+++ b/src/Storages/MergeTree/MergeTreeRangeReader.h
@@ -18,7 +18,8 @@ using PrewhereInfoPtr = std::shared_ptr<PrewhereInfo>;
 class ExpressionActions;
 using ExpressionActionsPtr = std::shared_ptr<ExpressionActions>;
 
-struct PrewhereActions
+/// The same as PrewhereInfo, but with ExpressionActions instead of ActionsDAG
+struct PrewhereExprInfo
 {
     /// Actions which are executed in order to alias columns are used for prewhere actions.
     ExpressionActionsPtr alias_actions;
@@ -42,7 +43,7 @@ public:
     MergeTreeRangeReader(
         IMergeTreeReader * merge_tree_reader_,
         MergeTreeRangeReader * prev_reader_,
-        const PrewhereActions * prewhere_info_,
+        const PrewhereExprInfo * prewhere_info_,
         bool last_reader_in_chain_);
 
     MergeTreeRangeReader() = default;
@@ -235,7 +236,7 @@ private:
     IMergeTreeReader * merge_tree_reader = nullptr;
     const MergeTreeIndexGranularity * index_granularity = nullptr;
     MergeTreeRangeReader * prev_reader = nullptr; /// If not nullptr, read from prev_reader firstly.
-    const PrewhereActions * prewhere_info;
+    const PrewhereExprInfo * prewhere_info;
 
     Stream stream;