diff --git a/config.go b/config.go
index f156036..d3e5805 100644
--- a/config.go
+++ b/config.go
@@ -110,7 +110,7 @@ PrivateKey = {{ .PrivateKey | wgKey }}
 PublicKey = {{ .PublicKey | wgKey }}
 AllowedIPs = {{ range $i, $el := .AllowedIPs }}{{if $i}}, {{ end }}{{ $el }}{{ end }}
 {{- if .PresharedKey }}{{ "\n" }}PresharedKey = {{ .PresharedKey }}{{ end }}
-{{- if .PersistentKeepaliveInterval }}{{ "\n" }}PersistentKeepaliveInterval = {{ .PersistentKeepaliveInterval | toSeconds }}{{ end }}
+{{- if .PersistentKeepaliveInterval }}{{ "\n" }}PersistentKeepalive = {{ .PersistentKeepaliveInterval | toSeconds }}{{ end }}
 {{- if .Endpoint }}{{ "\n" }}Endpoint = {{ .Endpoint }}{{ end }}
 {{- end }}
 `
diff --git a/config_test.go b/config_test.go
index 321838a..7f012ba 100644
--- a/config_test.go
+++ b/config_test.go
@@ -1,8 +1,9 @@
 package wgquick
 
 import (
-	"github.com/stretchr/testify/assert"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 var testConfigs = map[string]string{
@@ -47,6 +48,7 @@ PreDown = ip rule delete ipproto tcp dport 22 table 1234
 [Peer]
 PublicKey = xTIBA5rboUvnH4htodjb6e697QjLERt1NAB4mZqp8Dg=
 AllowedIPs = 0.0.0.0/0
+PersistentKeepalive = 25
 `,
 }