diff --git a/tests/lean/run/scopedParsers.lean b/tests/lean/run/scopedParsers.lean
new file mode 100644
index 0000000000..c4b20bc1de
--- /dev/null
+++ b/tests/lean/run/scopedParsers.lean
@@ -0,0 +1,19 @@
+def f (x y : Nat) := x + 2*y
+
+namespace Foo
+
+scoped infix:65 [1] "+" => f
+
+theorem ex1 (x y : Nat) : x + y = f x y := rfl
+
+#check 1 + 2
+
+end Foo
+
+#check 1 + 2
+theorem ex2 (x y : Nat) : x + y = HAdd.hAdd x y := rfl
+
+open Foo
+
+theorem ex3 (x y : Nat) : x + y = f x y := rfl
+#check 1 + 2