diff --git a/web.rb b/web.rb
index bd1ba56973cea5cb72f49cd8d2cf1789018424f5..8eeb22ff82601f6b90dee40dfb18fcc0ae96f8bc 100644
--- a/web.rb
+++ b/web.rb
@@ -283,7 +283,8 @@ class Web < Roda
 						r.json do
 							{
 								from: c.registered?.phone,
-								to: params["to"]
+								to: params["to"],
+								customer_id: c.customer_id
 							}.to_json
 						end