diff --git a/dom/media/mediasource/ContainerParser.cpp b/dom/media/mediasource/ContainerParser.cpp
index 1ac3a7c287ae..8bf331f8c4d6 100644
--- a/dom/media/mediasource/ContainerParser.cpp
+++ b/dom/media/mediasource/ContainerParser.cpp
@@ -11,6 +11,7 @@
 #include "mozilla/ErrorResult.h"
 #include "mp4_demuxer/MoofParser.h"
 #include "mozilla/Logging.h"
+#include "mozilla/Maybe.h"
 #include "MediaData.h"
 #ifdef MOZ_FMP4
 #include "MP4Stream.h"