diff --git a/website/source/docs/builders/vmware-iso.html.md.erb b/website/source/docs/builders/vmware-iso.html.md.erb
index 12d0d77cc..180af5c08 100644
--- a/website/source/docs/builders/vmware-iso.html.md.erb
+++ b/website/source/docs/builders/vmware-iso.html.md.erb
@@ -100,6 +100,8 @@ builder.
 
 -   `cpus` (number) - The number of cpus to use when building the VM.
 
+-   `cores` (number) - The number of cores per socket to use when building the VM.
+
 -   `cdrom_adapter_type` (string) - The adapter type (or bus) that will be used
     by the cdrom device. This is chosen by default based on the disk adapter
     type. VMware tends to lean towards `ide` for the cdrom device unless