diff --git a/src/box/lua/tuple.lua b/src/box/lua/tuple.lua
index febd79d06603b41f70f8c1ecdfca197d20a0f234..0f13b2789eaa991b9a418024e6341e4cfd607bdf 100644
--- a/src/box/lua/tuple.lua
+++ b/src/box/lua/tuple.lua
@@ -48,7 +48,6 @@ local function tuple_iterator_next(it, tuple, pos)
     local field
     if it.tuple == tuple and it.fieldno == pos then
         -- Sequential iteration
-        print('optimization')
         field = builtin.tuple_next(it)
     else
         -- Seek