diff --git a/dbms/src/IO/copyData.cpp b/dbms/src/IO/copyData.cpp
index 9e88a6426df..e095568d686 100644
--- a/dbms/src/IO/copyData.cpp
+++ b/dbms/src/IO/copyData.cpp
@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+//
 
 #include <Common/Exception.h>
 #include <IO/Buffer/ReadBuffer.h>