diff --git a/mozilla/layout/build/Makefile.in b/mozilla/layout/build/Makefile.in
index 1708b065fd1..9550e1f43f5 100644
--- a/mozilla/layout/build/Makefile.in
+++ b/mozilla/layout/build/Makefile.in
@@ -58,6 +58,7 @@ EXTRA_DSO_LDOPTS = \
 	-lraptorhtmltable_s	\
 	-lraptorxmldoc_s	\
 	-lraptorxmlcontent_s	\
+	-lraptorxulbase_s	\
 	-lraptorxulcontent_s	\
 	-lraptorlayout_s        \
 	-lraptorevents_s	\