diff --git a/vlib/v/checker/infix.v b/vlib/v/checker/infix.v
index 92af3bf50bc661..4c241891bf6638 100644
--- a/vlib/v/checker/infix.v
+++ b/vlib/v/checker/infix.v
@@ -964,7 +964,7 @@ fn (mut c Checker) check_duplicated_items(node &ast.ArrayInit) {
 		if item.str() !in unique_items {
 			unique_items << item_str
 		} else {
-			c.error('item `${item_str}` is duplicated in the list', item.pos())
+			c.note('item `${item_str}` is duplicated in the list', item.pos())
 		}
 	}
 }
diff --git a/vlib/v/checker/tests/infix_dup_in_err.out b/vlib/v/checker/tests/infix_dup_in_err.out
index 8d6c95737989da..4feb328daf69c9 100644
--- a/vlib/v/checker/tests/infix_dup_in_err.out
+++ b/vlib/v/checker/tests/infix_dup_in_err.out
@@ -1,9 +1,9 @@
-vlib/v/checker/tests/infix_dup_in_err.vv:1:16: error: the item `2` is duplicated in the list
+vlib/v/checker/tests/infix_dup_in_err.vv:1:16: notice: item `2` is duplicated in the list
     1 | if 1 in [1, 2, 2, 2] { println('ok') }
       |                ^
     2 | 
     3 | a := `a`
-vlib/v/checker/tests/infix_dup_in_err.vv:4:20: error: the item `a` is duplicated in the list
+vlib/v/checker/tests/infix_dup_in_err.vv:4:20: notice: item `a` is duplicated in the list
     2 | 
     3 | a := `a`
     4 | if `a` in [`c`, a, a] { println('ok') }