diff --git a/website/source/docs/providers/aws/r/route_table.html.markdown b/website/source/docs/providers/aws/r/route_table.html.markdown
index c474553984..330bc3bc3c 100644
--- a/website/source/docs/providers/aws/r/route_table.html.markdown
+++ b/website/source/docs/providers/aws/r/route_table.html.markdown
@@ -33,6 +33,7 @@ The following arguments are supported:
 * `vpc_id` - (Required) The ID of the routing table.
 * `route` - (Optional) A list of route objects. Their keys are documented below.
 * `tags` - (Optional) A mapping of tags to assign to the resource.
+* `propogating_vgws` - (Optional) A list of virtual gateways for propogation.
 
 Each route supports the following: