diff --git a/tests/libhwbinder/1.0/IBenchmark.hal b/tests/libhwbinder/1.0/IBenchmark.hal
new file mode 100644
index 0000000..5ecf6e1
--- /dev/null
+++ b/tests/libhwbinder/1.0/IBenchmark.hal
@@ -0,0 +1,5 @@
+package android.hardware.tests.libhwbinder@1.0;
+
+interface IBenchmark {
+  sendVec(vec<uint8_t> data) generates (vec<uint8_t> return_data);
+};