diff --git a/test/test_main_lib.cc b/test/test_main_lib.cc
index bb41e6530f..59352caefd 100644
--- a/test/test_main_lib.cc
+++ b/test/test_main_lib.cc
@@ -124,13 +124,6 @@ class TestMainImpl : public TestMain {
       rtc::tracing::StartInternalCapture(trace_event_path.c_str());
     }
 
-    // TODO(bugs.webrtc.org/9792): we need to reference something from
-    // fileutils.h so that our downstream hack where we replace fileutils.cc
-    // works. Otherwise the downstream flag implementation will take over and
-    // botch the flag introduced by the hack. Remove this awful thing once the
-    // downstream implementation has been eliminated.
-    (void)webrtc::test::JoinFilename("horrible", "hack");
-
     // InitFieldTrialsFromString stores the char*, so the char array must
     // outlive the application.
     field_trials_ = absl::GetFlag(FLAGS_force_fieldtrials);