diff --git a/regression/x86only/test003.lama b/regression/x86only/test003.lama
index f6a6c05fc..a7c62c4a4 100644
--- a/regression/x86only/test003.lama
+++ b/regression/x86only/test003.lama
@@ -1,7 +1,7 @@
 local lists = [
  {},
  {1, 2, 3, 4},
- {{1}, {2, 3}, {4, {5, 6}}},
+ {{1} : {}, {2, 3}, {4, {5, 6}}},
  1 : 2 : 3 : 4 : {}
 ], i;