diff --git a/mozilla/mailnews/absync/build/Makefile.in b/mozilla/mailnews/absync/build/Makefile.in
index ec287c8ad92..65f1ec04b24 100644
--- a/mozilla/mailnews/absync/build/Makefile.in
+++ b/mozilla/mailnews/absync/build/Makefile.in
@@ -60,6 +60,7 @@ SHARED_LIBRARY_LIBS = \
 EXTRA_DSO_LDOPTS = \
 		-L$(DIST)/bin \
 		-L$(DIST)/lib \
+		$(MOZ_UNICHARUTIL_LIBS) \
 		$(XPCOM_LIBS) \
 		$(MOZ_JS_LIBS) \
 		$(EXTRA_DSO_LIBS) \