diff --git a/luprex/core/cpp/world-diffxmit.cpp b/luprex/core/cpp/world-diffxmit.cpp
index 98d192d5..3057282b 100644
--- a/luprex/core/cpp/world-diffxmit.cpp
+++ b/luprex/core/cpp/world-diffxmit.cpp
@@ -183,7 +183,6 @@ void World::diff_luatabs(int64_t actor_id, World *master, StreamBuffer *xsb) {
 
     // Calculate the set of close tangibles.
     util::IdVector closetans = master->get_near(actor_id, RadiusClose, true, false);
-    std::cerr << "Master closetans=" << util::id_vector_debug_string(closetans) << std::endl;
     assert(get_near(actor_id, RadiusClose, true, false) == closetans);
     util::HashValue closehash = util::hash_id_vector(closetans);