1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/imports/issue-8640.rs b/tests/ui/imports/issue-8640.rs
new file mode 100644
index 000000000..51a02a32e
--- /dev/null
+++ b/tests/ui/imports/issue-8640.rs
@@ -0,0 +1,10 @@
+#[allow(unused_imports)]
+
+mod foo {
+    use baz::bar;
+    mod bar {}
+    //~^ ERROR the name `bar` is defined multiple times
+}
+mod baz { pub mod bar {} }
+
+fn main() {}