diff --git a/src/transaction_builder.js b/src/transaction_builder.js
index 3d1b2c5..7411a29 100644
--- a/src/transaction_builder.js
+++ b/src/transaction_builder.js
@@ -371,8 +371,7 @@ function prepareInput (input, ourPubKey, redeemScript, witnessValue, witnessScri
     signType: SCRIPT_TYPES.P2PKH,
 
     pubkeys: [ourPubKey],
-    signatures: [undefined],
-    maxSignatures: 1
+    signatures: [undefined]
   }
 }