diff --git a/aos/starter/subprocess_test.cc b/aos/starter/subprocess_test.cc
index 93fbf6a..ede39f8 100644
--- a/aos/starter/subprocess_test.cc
+++ b/aos/starter/subprocess_test.cc
@@ -49,6 +49,9 @@
 
   event_loop.Run();
 
+  EXPECT_TRUE(echo_stdout.full_path() == "/bin/echo" ||
+              echo_stdout.full_path() == "/usr/bin/echo")
+      << echo_stdout.full_path();
   ASSERT_EQ("abcdef\n", echo_stdout.GetStdout());
   ASSERT_TRUE(echo_stdout.GetStderr().empty());
   EXPECT_TRUE(observed_stopped);