diff --git a/EIPS/eip-663.md b/EIPS/eip-663.md
index feae741cab8b9..eefa7f6f455cf 100644
--- a/EIPS/eip-663.md
+++ b/EIPS/eip-663.md
@@ -2,6 +2,7 @@
 eip: 663
 title: Unlimited SWAP and DUP instructions
 author: Alex Beregszaszi (@axic)
+discussions-to: https://ethereum-magicians.org/t/eip-663-unlimited-swap-and-dup-instructions/3346
 type: Standards Track
 category: Core
 status: Draft