diff --git a/apps/ndn-consumer-cbr.hpp b/apps/ndn-consumer-cbr.hpp
index 6e8f6c1..fbf606c 100644
--- a/apps/ndn-consumer-cbr.hpp
+++ b/apps/ndn-consumer-cbr.hpp
@@ -68,7 +68,7 @@
 protected:
   double m_frequency; // Frequency of interest packets (in hertz)
   bool m_firstTime;
-  RandomVariable* m_random;
+  Ptr<RandomVariableStream> m_random;
   std::string m_randomType;
 };