diff --git a/lib/http/rpcbase.js b/lib/http/rpcbase.js
index 6d05a93c..f57d33ec 100644
--- a/lib/http/rpcbase.js
+++ b/lib/http/rpcbase.js
@@ -91,7 +91,7 @@ RPCBase.errors = {
  * @default
  */
 
-RPCBase.MAGIC_STRING = 'Florincoin Signed Message:\n';
+RPCBase.MAGIC_STRING = '\u001bFlorincoin Signed Message:\n';
 
 /**
  * Execute batched RPC calls.