diff --git a/container.go b/container.go
index 530c08bc3940a65369c70216d5b61808c41fb838..c8375005491389ce291428f981d46b75163bf25e 100644
--- a/container.go
+++ b/container.go
@@ -53,7 +53,8 @@ type Container struct {
 type Config struct {
 	Hostname  string
 	User      string
-	Ram       int64
+	Ram       int64 // Memory limit (in bytes)
+	RamSwap   int64 // Total memory usage (ram + swap); set `-1' to disable swap
 	Ports     []int
 	Tty       bool // Attach standard streams to a tty, including stdin if it is not closed.
 	OpenStdin bool // Open stdin
diff --git a/lxc_template.go b/lxc_template.go
index 47f2058dc4428238bed5f0c28db9945cbdec4e39..5a37624a3232642ea6f92abdf3adc1411516d03c 100755
--- a/lxc_template.go
+++ b/lxc_template.go
@@ -88,14 +88,29 @@ lxc.cap.drop = audit_control audit_write mac_admin mac_override mknod net_raw se
 {{if .Config.Ram}}
 lxc.cgroup.memory.limit_in_bytes = {{.Config.Ram}}
 lxc.cgroup.memory.soft_limit_in_bytes = {{.Config.Ram}}
+{{with $ramSwap := getRamSwap .Config}}
+lxc.cgroup.memory.memsw.limit_in_bytes = {{$ramSwap}}
+{{end}}
 {{end}}
 `
 
 var LxcTemplateCompiled *template.Template
 
+func getRamSwap(config *Config) int64 {
+	// By default, RamSwap is set to twice the size of RAM.
+	// If you want to omit RamSwap, set it to `-1'.
+	if config.RamSwap < 0 {
+		return 0
+	}
+	return config.Ram * 2
+}
+
 func init() {
 	var err error
-	LxcTemplateCompiled, err = template.New("lxc").Parse(LxcTemplate)
+	funcMap := template.FuncMap{
+		"getRamSwap": getRamSwap,
+	}
+	LxcTemplateCompiled, err = template.New("lxc").Funcs(funcMap).Parse(LxcTemplate)
 	if err != nil {
 		panic(err)
 	}