diff --git a/tests/libhwbinder/1.0/IBenchmark.hal b/tests/libhwbinder/1.0/IBenchmark.hal
index 6b266e2..b3aa320 100644
--- a/tests/libhwbinder/1.0/IBenchmark.hal
+++ b/tests/libhwbinder/1.0/IBenchmark.hal
@@ -17,5 +17,5 @@
 package android.hardware.tests.libhwbinder@1.0;
 
 interface IBenchmark {
-  sendVec(vec<uint8_t> data) generates (vec<uint8_t> return_data);
+  sendVec(vec<uint8_t> data) generates (vec<uint8_t> data);
 };