diff --git a/toolkit/library/Makefile.in b/toolkit/library/Makefile.in
index a7db916e4e8..3b00293b908 100644
--- a/toolkit/library/Makefile.in
+++ b/toolkit/library/Makefile.in
@@ -177,7 +177,7 @@ EXTRA_DSO_LDOPTS += $(NSPR_LIBS)
 
 ifeq ($(MOZ_WIDGET_TOOLKIT),cocoa)
 CXXFLAGS	+= $(TK_CFLAGS)
-EXTRA_DSO_LDOPTS += \
+OS_LIBS += \
 	-framework SystemConfiguration \
 	-framework QuickTime \
 	-framework IOKit \
diff --git a/toolkit/library/libxul-config.mk b/toolkit/library/libxul-config.mk
index 65cf38f5878..676daff934b 100644
--- a/toolkit/library/libxul-config.mk
+++ b/toolkit/library/libxul-config.mk
@@ -363,7 +363,7 @@ COMPONENT_LIBS += gkdebug
 endif
 
 ifeq ($(MOZ_WIDGET_TOOLKIT),cocoa)
-EXTRA_DSO_LDOPTS += -framework OpenGL -lcups
+OS_LIBS += -framework OpenGL -lcups
 endif
 
 EXTRA_DSO_LDOPTS += \