diff --git a/dom/media/mediasource/SourceBufferDecoder.cpp b/dom/media/mediasource/SourceBufferDecoder.cpp
index 3071ce3c444a..8e409fe366d4 100644
--- a/dom/media/mediasource/SourceBufferDecoder.cpp
+++ b/dom/media/mediasource/SourceBufferDecoder.cpp
@@ -8,6 +8,7 @@
 #include "prlog.h"
 #include "AbstractMediaDecoder.h"
 #include "MediaDecoderReader.h"
+#include "mozilla/dom/TimeRanges.h"
 
 #ifdef PR_LOGGING
 extern PRLogModuleInfo* GetMediaSourceLog();