diff --git a/dbms/src/Storages/MergeTree/MergeTreeBaseBlockInputStream.cpp b/dbms/src/Storages/MergeTree/MergeTreeBaseBlockInputStream.cpp
index 9c0b96d6615..fe9cdfad26a 100644
--- a/dbms/src/Storages/MergeTree/MergeTreeBaseBlockInputStream.cpp
+++ b/dbms/src/Storages/MergeTree/MergeTreeBaseBlockInputStream.cpp
@@ -147,7 +147,7 @@ Block MergeTreeBaseBlockInputStream::readFromPart()
     }
 
     size_t recommended_rows = estimateNumRows(*task, task->range_reader);
-    size_t rows_to_read = std::max(1, std::min(max_block_size_rows, recommended_rows));
+    size_t rows_to_read = std::max(static_cast<decltype(max_block_size_rows)>(1), std::min(max_block_size_rows, recommended_rows));
 
     auto read_result = task->range_reader.read(rows_to_read, task->mark_ranges);