diff --git a/post-processor/vsphere-template/step_mark_as_template.go b/post-processor/vsphere-template/step_mark_as_template.go
index 60780dd0d..82b26a7b5 100644
--- a/post-processor/vsphere-template/step_mark_as_template.go
+++ b/post-processor/vsphere-template/step_mark_as_template.go
@@ -28,7 +28,7 @@ func NewStepMarkAsTemplate(vmname, source string) *stepMarkAsTemplate {
 		remoteFolder = local[1]
 		vmname = local[2]
 
-		source = path.Join("/vmfs/volumes/", datastore, vmname, vmname+path.Ext(source))
+		source = path.Join("/vmfs/volumes/", datastore, vmname, vmname+".vmx")
 
 	}