diff --git a/src/pivx_parser.py b/src/pivx_parser.py
index ec06dd9..732b52a 100644
--- a/src/pivx_parser.py
+++ b/src/pivx_parser.py
@@ -56,7 +56,7 @@ def IsCoinBase(vin: Dict[str, Any]) -> bool:
 
 
 def ParseTxInput(p: HexParser) -> Dict[str, Any]:
-    vin = VinType {
+    vin: VinType = {
         "txid": p.readString(32, "little"),
         "vout": p.readInt(4, "little"),
         "scriptSig": {