diff --git a/hw/xen/Makefile.objs b/hw/xen/Makefile.objs
index 3fc715e5954d04e8192e124ebdbaf5bb5c45b80f..502b32d877a0182ea4d81363f2a69ede648d0b98 100644
--- a/hw/xen/Makefile.objs
+++ b/hw/xen/Makefile.objs
@@ -4,4 +4,4 @@ common-obj-y += xen-legacy-backend.o xen_devconfig.o xen_pvdev.o xen-bus.o xen-b
 obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen-host-pci-device.o
 obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen_pt.o xen_pt_config_init.o xen_pt_graphics.o xen_pt_msi.o
 obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen_pt_load_rom.o
-obj-$(call $(lnot, $(CONFIG_XEN_PCI_PASSTHROUGH))) += xen_pt_stub.o
+obj-$(call lnot,$(CONFIG_XEN_PCI_PASSTHROUGH)) += xen_pt_stub.o