diff --git a/apps/ndn-consumer-zipf-mandelbrot.hpp b/apps/ndn-consumer-zipf-mandelbrot.hpp
index f973240..cdf58a2 100644
--- a/apps/ndn-consumer-zipf-mandelbrot.hpp
+++ b/apps/ndn-consumer-zipf-mandelbrot.hpp
@@ -63,6 +63,7 @@
 
   virtual void
   SendPacket();
+
   uint32_t
   GetNextSeq();