diff --git a/peer/test_utils.go b/peer/test_utils.go
index add15cf19..5e288c4d3 100644
--- a/peer/test_utils.go
+++ b/peer/test_utils.go
@@ -561,3 +561,7 @@ func (m *mockMessageConn) RemoteAddr() net.Addr {
 func (m *mockMessageConn) LocalAddr() net.Addr {
 	return nil
 }
+
+func (m *mockMessageConn) Close() error {
+	return nil
+}