diff --git a/dom/media/gtest/TestAudioTrackGraph.cpp b/dom/media/gtest/TestAudioTrackGraph.cpp
index e421243b3095..a6e5939d180f 100644
--- a/dom/media/gtest/TestAudioTrackGraph.cpp
+++ b/dom/media/gtest/TestAudioTrackGraph.cpp
@@ -10,7 +10,6 @@
 #include "gtest/gtest.h"
 
 #include "CrossGraphPort.h"
-#include "GMPTestMonitor.h"
 #include "MediaEngineWebRTCAudio.h"
 #include "MockCubeb.h"