1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/hygiene/issue-40847.rs b/src/test/ui/hygiene/issue-40847.rs
new file mode 100644
index 000000000..087b40ad6
--- /dev/null
+++ b/src/test/ui/hygiene/issue-40847.rs
@@ -0,0 +1,17 @@
+// run-pass
+macro_rules! gen {
+    ($name:ident ( $($dol:tt $var:ident)* ) $($body:tt)*) => {
+        macro_rules! $name {
+            ($($dol $var:ident)*) => {
+                $($body)*
+            }
+        }
+    }
+}
+
+gen!(m($var) $var);
+
+fn main() {
+    let x = 1;
+    assert_eq!(m!(x), 1);
+}