diff --git a/headers/os/net/NetAddress.h b/headers/os/net/NetAddress.h
index a5baf72df5..34c6344fa7 100644
--- a/headers/os/net/NetAddress.h
+++ b/headers/os/net/NetAddress.h
@@ -95,7 +95,7 @@ private:
 
 inline NLAddress* BNetAddress::GetImpl( void ) const
 {
-    return NULL;
+	return NULL;	// No Nettle backward compatibility
 }
 
 #endif // <-- #ifndef _NETADDRESS_H
diff --git a/headers/os/net/NetBuffer.h b/headers/os/net/NetBuffer.h
index 30554c16f5..27a5418245 100644
--- a/headers/os/net/NetBuffer.h
+++ b/headers/os/net/NetBuffer.h
@@ -119,7 +119,7 @@ private:
 
 inline NLPacket* BNetBuffer::GetImpl( void ) const
 {
-    return NULL;
+	return NULL;	// No Nettle backward compatibility
 }
 
 #endif // <-- #ifndef _NETBUFFER_H