diff --git a/Makefile.am b/Makefile.am
index 4efdccc..26ead13 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -69,6 +69,7 @@
   ndn-cpp/security/security-exception.cpp ndn-cpp/security/security-exception.hpp \
   ndn-cpp/security/certificate/oid.cpp ndn-cpp/security/certificate/oid.hpp \
   ndn-cpp/security/certificate/public-key.cpp ndn-cpp/security/certificate/public-key.hpp \
+  ndn-cpp/security/encryption/encryption-manager.hpp \
   ndn-cpp/security/identity/identity-manager.cpp ndn-cpp/security/identity/identity-manager.hpp \
   ndn-cpp/security/identity/identity-storage.hpp \
   ndn-cpp/security/identity/memory-identity-storage.cpp ndn-cpp/security/identity/memory-identity-storage.hpp \