diff --git a/src/test/examples/shaking2/SuperInterface2.java b/src/test/examples/shaking2/SuperInterface2.java
new file mode 100644
index 0000000..f9a1ff7
--- /dev/null
+++ b/src/test/examples/shaking2/SuperInterface2.java
@@ -0,0 +1,8 @@
+// Copyright (c) 2016, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+package shaking2;
+
+public interface SuperInterface2 extends SuperInterface1 {
+  public void interfaceMethod3();
+}