diff --git a/src/security/sec-tpm-memory.cpp b/src/security/sec-tpm-memory.cpp
index 71b1f62..d4de6fc 100644
--- a/src/security/sec-tpm-memory.cpp
+++ b/src/security/sec-tpm-memory.cpp
@@ -62,10 +62,16 @@
 SecTpmMemory::generateKeyPairInTpm(const Name& keyName, KeyType keyType, int keySize)
 {
 #if 1
-  throw Error("MemoryPrivateKeyStorage::generateKeyPair not implemented");
+  throw Error("SecTpmMemory::generateKeyPair not implemented");
 #endif
 }
 
+void
+SecTpmMemory::deleteKeyPairInTpm(const Name &keyName)
+{
+  throw Error("SecTpmMemory::deleteKeyPairInTpm not implemented");
+}
+
 ptr_lib::shared_ptr<PublicKey> 
 SecTpmMemory::getPublicKeyFromTpm(const Name& keyName)
 {