build: Fixing of includes
diff --git a/utils/ndn-limits-window.hpp b/utils/ndn-limits-window.hpp
index 1c1ed49..2fcea6f 100644
--- a/utils/ndn-limits-window.hpp
+++ b/utils/ndn-limits-window.hpp
@@ -21,7 +21,7 @@
 #ifndef _NDN_LIMITS_WINDOW_H_
 #define	_NDN_LIMITS_WINDOW_H_
 
-#include "ndn-limits.h"
+#include "ndn-limits.hpp"
 
 namespace ns3 {
 namespace ndn {