diff --git a/examples/producer.cpp b/examples/producer.cpp
index d6ca248..acb214c 100644
--- a/examples/producer.cpp
+++ b/examples/producer.cpp
@@ -70,6 +70,7 @@
   {
     m_face.setInterestFilter("/localhost/testApp",
                              bind(&Producer::onInterest, this, _1, _2),
+                             RegisterPrefixSuccessCallback(),
                              bind(&Producer::onRegisterFailed, this, _1, _2));
     m_face.processEvents();
   }