diff --git a/src/Functions/abtesting.cpp b/src/Functions/abtesting.cpp
index aedfcdcc9db..97dcf7164de 100644
--- a/src/Functions/abtesting.cpp
+++ b/src/Functions/abtesting.cpp
@@ -1,5 +1,6 @@
 #include <math.h>
 #include <sstream>
+
 #include <DataTypes/DataTypeString.h>
 #include <Columns/ColumnString.h>
 #include <Columns/ColumnConst.h>