diff --git a/tests/script/tsim/query/cache_last.sim b/tests/script/tsim/query/cache_last.sim
index 65eb46de69..50199117b0 100644
--- a/tests/script/tsim/query/cache_last.sim
+++ b/tests/script/tsim/query/cache_last.sim
@@ -89,7 +89,7 @@ if $data10 != @   -> Merge (columns=3 width=24 input_order=unknown output_order=
   return -1
 endi
 sql explain select count(*), last_row(f1), min(f1) from sta interval(1s);
-if $data10 != @   -> Merge (columns=4 width=66 input_order=asc output_order=asc mode=sort)@ then
+if $data10 != @   -> Merge (columns=4 width=82 input_order=asc output_order=asc mode=sort)@ then
   return -1
 endi
 sql explain select distinct count(*), last_row(f1), min(f1) from tba1;