diff --git a/src/test/ui/parser/issues/issue-101540.stderr b/src/test/ui/parser/issues/issue-101540.stderr
index 53c7c9590e6ca..8af887050023c 100644
--- a/src/test/ui/parser/issues/issue-101540.stderr
+++ b/src/test/ui/parser/issues/issue-101540.stderr
@@ -1,6 +1,8 @@
 error: structs are not allowed in struct definitions
   --> $DIR/issue-101540.rs:2:5
    |
+LL | struct S1 {
+   |        -- while parsing this struct
 LL |     struct S2 {
    |     ^^^^^^^^^
    |