diff --git a/nano/node/peers.cpp b/nano/node/peers.cpp
index 7a5dbb290..77b955bd7 100644
--- a/nano/node/peers.cpp
+++ b/nano/node/peers.cpp
@@ -44,11 +44,7 @@ bool nano::peer_container::contacted (nano::endpoint const & endpoint_a, unsigne
 {
 	auto endpoint_l (nano::map_endpoint_to_v6 (endpoint_a));
 	auto should_handshake (false);
-	if (version_a < nano::node_id_version)
-	{
-		insert (endpoint_l, version_a);
-	}
-	else if (!known_peer (endpoint_l))
+	if (!known_peer (endpoint_l))
 	{
 		std::lock_guard<std::mutex> lock (mutex);
 
diff --git a/nano/secure/common.hpp b/nano/secure/common.hpp
index 2211293ad..7a912e497 100644
--- a/nano/secure/common.hpp
+++ b/nano/secure/common.hpp
@@ -38,7 +38,6 @@ namespace nano
 {
 const uint8_t protocol_version = 0x10;
 const uint8_t protocol_version_min = 0x0d;
-const uint8_t node_id_version = 0x0c;
 
 /*
  * Do not bootstrap from nodes older than this version.