diff --git a/src/iterative-query.cpp b/src/iterative-query.cpp
index 2f4da51..5ef4d2b 100644
--- a/src/iterative-query.cpp
+++ b/src/iterative-query.cpp
@@ -16,6 +16,7 @@
  * You should have received a copy of the GNU General Public License along with
  * NDNS, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 #include "iterative-query.hpp"
 
 namespace ndn {