diff --git a/js/src/xpconnect/tests/components/Makefile.in b/js/src/xpconnect/tests/components/Makefile.in
index cb63144c9de2..bfeda2043768 100644
--- a/js/src/xpconnect/tests/components/Makefile.in
+++ b/js/src/xpconnect/tests/components/Makefile.in
@@ -59,9 +59,9 @@ CPPSRCS		= \
 		xpctest_out.cpp \
 		$(NULL)
 
-LIBS += \
-		$(MOZ_TIMER_LIBS) \
-		$(NULL)
+EXTRA_DSO_LDOPTS = \
+	$(MOZ_TIMER_LIBS) \
+	$(NULL)
 
 include $(topsrcdir)/config/rules.mk