diff --git a/toolkit/components/places/public/Makefile.in b/toolkit/components/places/public/Makefile.in
index a8b6465d874..f96e9eb0b95 100644
--- a/toolkit/components/places/public/Makefile.in
+++ b/toolkit/components/places/public/Makefile.in
@@ -48,6 +48,7 @@ XPIDL_MODULE = places
 
 XPIDLSRCS  = \
   nsIAnnotationService.idl \
+  nsIFaviconService.idl \
   nsINavHistory.idl \
   nsINavBookmarksService.idl \
   $(NULL)