diff --git a/test/fail/clash.as b/test/fail/clash.as
new file mode 100644
index 00000000000..fafa57fd7cb
--- /dev/null
+++ b/test/fail/clash.as
@@ -0,0 +1,12 @@
+func foo() { }; // <-- removing this definition avoids the compiler exception
+
+actor class Test() = this { // <-- removing this stuff around the inner block avoids compiler exception
+  go() {
+    ignore(async
+    {
+      let x = 123;
+      let x = 123;
+    }
+    )
+  }
+};