diff --git a/tests/lean/run/new_frontend2.lean b/tests/lean/run/new_frontend2.lean
new file mode 100644
index 0000000000..45ba4a9c74
--- /dev/null
+++ b/tests/lean/run/new_frontend2.lean
@@ -0,0 +1,15 @@
+new_frontend
+
+variable {m : Type → Type}
+variable [s : Functor m]
+
+#check s.map
+
+/-
+The following doesn't work because
+```
+variable [r : Monad m]
+#check r.map
+```
+because `Monad.to* methods have bad binder annotations
+-/