diff --git a/xpfe/appshell/src/Makefile.in b/xpfe/appshell/src/Makefile.in
index 881d378d5062..0abd15260c90 100644
--- a/xpfe/appshell/src/Makefile.in
+++ b/xpfe/appshell/src/Makefile.in
@@ -97,5 +97,9 @@ EXTRA_DSO_LDOPTS = \
 		$(MOZ_JS_LIBS) \
 		$(NULL)
 
+ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+EXTRA_DSO_LDOPTS += $(TK_LIBS)
+endif
+
 include $(topsrcdir)/config/rules.mk