diff --git a/gns3server/modules/qemu/qemu_vm.py b/gns3server/modules/qemu/qemu_vm.py
index 43c35628..86f03a19 100644
--- a/gns3server/modules/qemu/qemu_vm.py
+++ b/gns3server/modules/qemu/qemu_vm.py
@@ -1438,7 +1438,7 @@ class QemuVM(BaseVM):
         else:
             raise QemuError("Console type {} is unknown".format(self._console_type))
         command.extend(self._monitor_options())
-        command.extend(self._network_options())
+        command.extend((yield from self._network_options()))
         command.extend(self._graphic())
         additional_options = self._options.strip()
         if additional_options: