diff --git a/dbms/src/DataStreams/MergingAggregatedBlockInputStream.cpp b/dbms/src/DataStreams/MergingAggregatedBlockInputStream.cpp
index d833ed6209b..9db77eced59 100644
--- a/dbms/src/DataStreams/MergingAggregatedBlockInputStream.cpp
+++ b/dbms/src/DataStreams/MergingAggregatedBlockInputStream.cpp
@@ -22,7 +22,7 @@ Block MergingAggregatedBlockInputStream::readImpl()
 	if (isCancelled() || it == blocks.end())
 		return res;
 
-	res = *it;
+	res = std::move(*it);
 	++it;
 
 	return res;
diff --git a/dbms/src/Interpreters/Aggregator.cpp b/dbms/src/Interpreters/Aggregator.cpp
index a5087345fe4..eb2c67e98fc 100644
--- a/dbms/src/Interpreters/Aggregator.cpp
+++ b/dbms/src/Interpreters/Aggregator.cpp
@@ -1071,7 +1071,7 @@ BlocksList Aggregator::convertToBlocks(AggregatedDataVariants & data_variants, b
 
 	double elapsed_seconds = watch.elapsedSeconds();
 	LOG_TRACE(log, std::fixed << std::setprecision(3)
-		<< "Converted aggregated data to block. "
+		<< "Converted aggregated data to blocks. "
 		<< rows << " rows, " << bytes / 1048576.0 << " MiB"
 		<< " in " << elapsed_seconds << " sec."
 		<< " (" << rows / elapsed_seconds << " rows/sec., " << bytes / elapsed_seconds / 1048576.0 << " MiB/sec.)");