diff --git a/src/ipaddress.cpp b/src/ipaddress.cpp
index e678725..189c3bf 100644
--- a/src/ipaddress.cpp
+++ b/src/ipaddress.cpp
@@ -95,7 +95,8 @@
                    "{NET_PFX} interface {NET_INTF}",
                    "NET_IP", address(), "NET_PFX", prefixLength(), "NET_INTF",
                    parent.get().interfaceName());
-        elog<InternalFailure>();
+
+        elog<NotAllowed>(Reason("Not allowed to delete a non-static address"));
     }
 
     std::unique_ptr<IPAddress> ptr;