diff --git a/Makefile.objs b/Makefile.objs
index 90cb34b1d1..0c13d4fd6a 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -44,7 +44,7 @@ net-obj-y += $(addprefix net/, $(net-nested-y))
 common-obj-y = $(block-obj-y)
 common-obj-y += $(net-obj-y)
 common-obj-y += $(qobject-obj-y)
-common-obj-y += readline.o console.o
+common-obj-y += readline.o console.o async.o
 
 common-obj-y += tcg-runtime.o host-utils.o
 common-obj-y += irq.o ioport.o input.o
diff --git a/Makefile.target b/Makefile.target
index 17ae698e07..10153db359 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -161,7 +161,7 @@ endif #CONFIG_BSD_USER
 # System emulator target
 ifdef CONFIG_SOFTMMU
 
-obj-y = vl.o async.o monitor.o pci.o pci_host.o pcie_host.o machine.o gdbstub.o
+obj-y = vl.o monitor.o pci.o pci_host.o pcie_host.o machine.o gdbstub.o
 obj-y += qemu-error.o qemu-timer.o
 # virtio has to be here due to weird dependency between PCI and virtio-net.
 # need to fix this properly