diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index dc26efaf..2df66ef9 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -1047,7 +1047,7 @@ simnet.keyPrefix = {
 simnet.addressPrefix = {
   pubkeyhash: 0x3f,
   scripthash: 0x7b,
-  witnesspubkeyhash: 0x03,
+  witnesspubkeyhash: 0x19,
   witnessscripthash: 0x28
 };