diff --git a/src/runtime/virtcontainers/qemu.go b/src/runtime/virtcontainers/qemu.go
index 73b6df2e49..6fd6296ce7 100644
--- a/src/runtime/virtcontainers/qemu.go
+++ b/src/runtime/virtcontainers/qemu.go
@@ -1959,7 +1959,7 @@ func (q *qemu) hotplugNetDevice(ctx context.Context, endpoint Endpoint, op Opera
 			return err
 		}
 		if machine.Type == QemuCCWVirtio {
-			devNoHotplug := fmt.Sprintf("fe.%x.%x", bridge.Addr, addr)
+			devNoHotplug := fmt.Sprintf("fe.%x.%v", bridge.Addr, addr)
 			return q.qmpMonitorCh.qmp.ExecuteNetCCWDeviceAdd(q.qmpMonitorCh.ctx, tap.Name, devID, endpoint.HardwareAddr(), devNoHotplug, int(q.config.NumVCPUs()))
 		}
 		return q.qmpMonitorCh.qmp.ExecuteNetPCIDeviceAdd(q.qmpMonitorCh.ctx, tap.Name, devID, endpoint.HardwareAddr(), addr, bridge.ID, romFile, int(q.config.NumVCPUs()), defaultDisableModern)