diff --git a/src/lp/cache-policy.hpp b/src/lp/cache-policy.hpp
index 45b9493..f35dc06 100644
--- a/src/lp/cache-policy.hpp
+++ b/src/lp/cache-policy.hpp
@@ -103,6 +103,8 @@
   mutable Block m_wire;
 };
 
+NDN_CXX_DECLARE_WIRE_ENCODE_INSTANTIATIONS(CachePolicy);
+
 } // namespace lp
 } // namespace ndn