diff --git a/include/ircd/net/socket.h b/include/ircd/net/socket.h
index 8e1c4524c..7f442f0e5 100644
--- a/include/ircd/net/socket.h
+++ b/include/ircd/net/socket.h
@@ -108,6 +108,8 @@ struct ircd::net::socket
 	// Socket cannot be copied or moved; must be constructed as shared ptr
 	socket(socket &&) = delete;
 	socket(const socket &) = delete;
+	socket &operator=(socket &&) = delete;
+	socket &operator=(const socket &) = delete;
 	~socket() noexcept;
 };
 
diff --git a/ircd/net.cc b/ircd/net.cc
index 0efb7e013..6fe88292e 100644
--- a/ircd/net.cc
+++ b/ircd/net.cc
@@ -1330,6 +1330,7 @@ ircd::net::socket::socket(asio::ssl::context &ssl,
 ircd::net::socket::~socket()
 noexcept try
 {
+	assert(instances > 0);
 	if(unlikely(--instances == 0))
 		net::dock.notify_all();