diff --git a/dbms/src/DataTypes/DataTypeFactory.cpp b/dbms/src/DataTypes/DataTypeFactory.cpp
index 7379ac85b64..74e28cf9014 100644
--- a/dbms/src/DataTypes/DataTypeFactory.cpp
+++ b/dbms/src/DataTypes/DataTypeFactory.cpp
@@ -118,7 +118,7 @@ void DataTypeFactory::registerAlias(const String & alias_name, const String & re
         if(!case_insensitive_aliases.emplace(alias_name_lowercase, real_type_dict_name).second)
             throw Exception("DataTypeFactory: case insensitive alias name '" + alias_name + "' is not unique", ErrorCodes::LOGICAL_ERROR);
 
-    if(!aliases.emplace(alias_name, real_type_dict_name).second)
+    if (!aliases.emplace(alias_name, real_type_dict_name).second)
         throw Exception("DataTypeFactory: alias name '" + alias_name + "' is not unique", ErrorCodes::LOGICAL_ERROR);
 }