diff --git a/pycoin/symbols/tbtx.py b/pycoin/symbols/tbtx.py
index 7b85031f4..a61cf22e6 100644
--- a/pycoin/symbols/tbtx.py
+++ b/pycoin/symbols/tbtx.py
@@ -2,9 +2,9 @@
 
 network = create_bitcoinish_network(
     symbol="TBTX", network_name="BitCore", subnet_name="testnet3",
-    wif_prefix_hex="EF", sec_prefix="TBTXSEC:", address_prefix_hex="6F", pay_to_script_prefix_hex="EF",
+    wif_prefix_hex="EF", sec_prefix="TBTXSEC:", address_prefix_hex="6F", pay_to_script_prefix_hex="C4",
     bip32_prv_prefix_hex="04358394", bip32_pub_prefix_hex="043587CF",
-    magic_header_hex="fbd2c8f1", default_port=8666,
+    magic_header_hex="FDD2C8F1", default_port=8666,
     dns_bootstrap=[
         "188.68.52.172", "51.15.84.165"
     ])