diff --git a/dbms/src/Interpreters/Aggregator.h b/dbms/src/Interpreters/Aggregator.h
index 5f552223a24..8c67271b1d5 100644
--- a/dbms/src/Interpreters/Aggregator.h
+++ b/dbms/src/Interpreters/Aggregator.h
@@ -121,7 +121,7 @@ template <typename Base>
 struct AggregationDataWithNullKeyTwoLevel : public Base
 {
     using Base::impls;
-    
+
     AggregationDataWithNullKeyTwoLevel() {}
 
     template <typename Other>