diff --git a/builder/proxmox/builder.go b/builder/proxmox/builder.go
index f44bcc7a3..ddeaa3a37 100644
--- a/builder/proxmox/builder.go
+++ b/builder/proxmox/builder.go
@@ -35,7 +35,7 @@ func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
 	return nil, nil
 }
 
-func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
+func (b *Builder) Run(ui packer.Ui, hook packer.Hook) (packer.Artifact, error) {
 	var err error
 	tlsConfig := &tls.Config{
 		InsecureSkipVerify: b.config.SkipCertValidation,