diff --git a/dockerfile.go b/dockerfile.go
index 7657168..cf8f3f3 100644
--- a/dockerfile.go
+++ b/dockerfile.go
@@ -18,6 +18,7 @@ import (
 	_ "embed"
 	"fmt"
 	"io"
+	"strconv"
 	"text/template"
 
 	"github.com/sirupsen/logrus"
@@ -36,10 +37,10 @@ var alpineDockerfile string
 var centOSDockerfile string
 
 var (
-	ubuntuDockerfileTemplate = template.Must(template.New("ubuntu.Dockerfile").Parse(ubuntuDockerfile))
-	debianDockerfileTemplate = template.Must(template.New("debian.Dockerfile").Parse(debianDockerfile))
-	alpineDockerfileTemplate = template.Must(template.New("alpine.Dockerfile").Parse(alpineDockerfile))
-	centOSDockerfileTemplate = template.Must(template.New("centos.Dockerfile").Parse(centOSDockerfile))
+	ubuntuDockerfileTemplate = template.Must(template.New("ubuntu.Dockerfile").Funcs(tplFuncs).Parse(ubuntuDockerfile))
+	debianDockerfileTemplate = template.Must(template.New("debian.Dockerfile").Funcs(tplFuncs).Parse(debianDockerfile))
+	alpineDockerfileTemplate = template.Must(template.New("alpine.Dockerfile").Funcs(tplFuncs).Parse(alpineDockerfile))
+	centOSDockerfileTemplate = template.Must(template.New("centos.Dockerfile").Funcs(tplFuncs).Parse(centOSDockerfile))
 )
 
 type NetworkManager string
@@ -117,3 +118,7 @@ func NewDockerfile(release OSRelease, img, password string, networkManager Netwo
 	}
 	return d, nil
 }
+
+var tplFuncs = template.FuncMap{
+	"atoi": strconv.Atoi,
+}
diff --git a/templates/centos.Dockerfile b/templates/centos.Dockerfile
index 79f9f82..319a46a 100644
--- a/templates/centos.Dockerfile
+++ b/templates/centos.Dockerfile
@@ -2,8 +2,12 @@ FROM {{ .Image }}
 
 USER root
 
+{{ $version := atoi .Release.Version }}
+
+{{ if le $version 8 }}
 RUN sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-* && \
     sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+{{ end }}
 
 RUN yum update -y
 
@@ -36,7 +40,7 @@ RUN dracut --no-hostonly --regenerate-all --force
 
 {{- if not .Grub }}
 RUN cd /boot && \
-        mv $(find . -name 'vmlinuz-*') /boot/vmlinuz && \
+        mv $(find {{ if le $version 8 }}.{{ else }}/{{ end }} -name 'vmlinuz*') /boot/vmlinuz && \
         mv $(find . -name 'initramfs-*.img') /boot/initrd.img
 {{- end }}