diff --git a/web.rb b/web.rb
index 84911dff2770b71a5f3bb232051ebcc9a5a731a3..3c21b5624eaa8d83676718c5205a347a81a45c94 100644
--- a/web.rb
+++ b/web.rb
@@ -352,7 +352,7 @@ class Web < Roda
 				end
 
 				r.post do
-					customer_id = params["from"].sub(/^\+/, "")
+					customer_id = params["from"].sub(/^\+1/, "")
 					customer_repo.find(customer_id).then(:registered?).then do |reg|
 						render :forward, locals: {
 							from: reg.phone,