diff --git a/bip-0127.mediawiki b/bip-0127.mediawiki
index 87071d8eaf..5f6f2b0198 100644
--- a/bip-0127.mediawiki
+++ b/bip-0127.mediawiki
@@ -133,11 +133,10 @@ message ProofOfReserves {
 	// additional fields.
 	uint32 version = 1;
 
-	// The network magic for the network in which the proofs are valid.
-	// 0xD9B4BEF9 for mainnet, 0x0709110B for testnet
-	//TODO consider BIP44 coin type ids instead:
-	// https://github.com/satoshilabs/slips/blob/master/slip-0044.md
-	uint32 network_magic = 2;
+	// The coin type id from SLIP-0044 for the network in which the proofs are valid.
+	// 0 (0x80000000) for Bitcoin mainnet, 1 (0x80000001) for Testnet (all coins)
+	// See SLIP-0044 for the full registry: https://github.com/satoshilabs/slips/blob/master/slip-0044.md
+	uint32 coin_type = 2;
 
 	// The commitment message for this proof-of-reserves.
 	// This message is global for all the proofs.