security: IdentityCertificate: Need to define the virtual destructor.
diff --git a/ndn-cpp/security/certificate/identity-certificate.cpp b/ndn-cpp/security/certificate/identity-certificate.cpp
index 72e9531..a328112 100644
--- a/ndn-cpp/security/certificate/identity-certificate.cpp
+++ b/ndn-cpp/security/certificate/identity-certificate.cpp
@@ -20,6 +20,10 @@
     throw SecurityException("Wrong Identity Certificate Name!");
 }
 
+IdentityCertificate::~IdentityCertificate()
+{
+}
+
 bool
 IdentityCertificate::isCorrectName(const Name& name)
 {