diff --git a/layout/base/public/MANIFEST b/layout/base/public/MANIFEST
index 4cb2b8ad25b..24ddcb5d952 100644
--- a/layout/base/public/MANIFEST
+++ b/layout/base/public/MANIFEST
@@ -11,6 +11,7 @@ nsIFrameImageLoader.h
 nsIPresContext.h
 nsIPresShell.h
 nsIReflowCommand.h
+nsIRangeList.h
 nsISelection.h
 nsISpaceManager.h
 nsStyleCoord.h