diff --git a/mozilla/mailnews/base/util/Makefile.in b/mozilla/mailnews/base/util/Makefile.in
index c606fc8c2cf..48778ce2acc 100644
--- a/mozilla/mailnews/base/util/Makefile.in
+++ b/mozilla/mailnews/base/util/Makefile.in
@@ -59,6 +59,7 @@ EXTRA_DSO_LDOPTS =	\
 	-L$(DIST)/lib	\
 	-lraptorbase	\
 	-lxpcom			\
+	-lreg			\
 	-lrdfutil_s		\
 	$(NULL)