diff --git a/connection.go b/connection.go
index c761080bd17..db82bf18726 100644
--- a/connection.go
+++ b/connection.go
@@ -738,6 +738,7 @@ func (s *connection) ConnectionState() ConnectionState {
 	return ConnectionState{
 		TLS:               s.cryptoStreamHandler.ConnectionState(),
 		SupportsDatagrams: s.supportsDatagrams(),
+		QUICVersion:       s.version,
 	}
 }
 
diff --git a/interface.go b/interface.go
index 78c731e2191..f4a93332028 100644
--- a/interface.go
+++ b/interface.go
@@ -331,6 +331,7 @@ type Config struct {
 type ConnectionState struct {
 	TLS               handshake.ConnectionState
 	SupportsDatagrams bool
+	QUICVersion       protocol.VersionNumber
 }
 
 // A Listener for incoming QUIC connections