diff --git a/test/big/lua.test b/test/big/lua.test
index 8ba6b288d1991e7329d928231739b10dd270fa25..075919cd7334123e25b9836c26c26c1d6270dff5 100644
--- a/test/big/lua.test
+++ b/test/big/lua.test
@@ -88,7 +88,7 @@ print """
 """
 pid = 1
 tid = 999
-for sid in {1, 2}:
+for sid in [1, 2]:
     for i in range(1, 4):
         exec admin "lua box.insert(16, 'pid_%d', 'sid_%d', 'tid_%d')" % (pid, sid, tid)
         pid += 1