diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index feda58b5..63fcec26 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -975,7 +975,7 @@ simnet.addressPrefix = {
   scripthash: 0x7b,
   witnesspubkeyhash: 0x19,
   witnessscripthash: 0x28,
-  bech32: 'sc'
+  bech32: 'sb'
 };
 
 simnet.requireStandard = false;