diff --git a/pybtc/connector.py b/pybtc/connector.py
index 26a4f93..8145e12 100644
--- a/pybtc/connector.py
+++ b/pybtc/connector.py
@@ -850,6 +850,7 @@ def get_stream(stream):
 def decode_block_tx(block):
     s = get_stream(block)
     b = dict()
+    b["amount"] = 0
     b["version"] = unpack("<L", s.read(4))[0]
     b["versionHex"] = pack(">L", b["version"]).hex()
     b["previousBlockHash"] = rh2s(s.read(32))