diff --git a/gui/qt/transaction_dialog.py b/gui/qt/transaction_dialog.py
index eb5d3c8f..77110f7c 100644
--- a/gui/qt/transaction_dialog.py
+++ b/gui/qt/transaction_dialog.py
@@ -106,7 +106,7 @@ class TxDialog(QDialog):
 
 
     def save(self):
-        name = 'signed_%s.txn' % (self.tx.hash()[0:8]) if self.tx.is_complete else 'unsigned.txn'
+        name = 'signed_%s.txn' % (self.tx.hash()[0:8]) if self.tx.is_complete() else 'unsigned.txn'
         fileName = self.parent.getSaveFileName(_("Select where to save your signed transaction"), name, "*.txn")
         if fileName:
             with open(fileName, "w+") as f:
@@ -119,7 +119,7 @@ class TxDialog(QDialog):
 
         is_relevant, is_mine, v, fee = self.wallet.get_tx_value(self.tx)
 
-        if self.tx.is_complete:
+        if self.tx.is_complete():
             status = _("Status: Signed")
             self.sign_button.hide()
             tx_hash = self.tx.hash()
diff --git a/lib/transaction.py b/lib/transaction.py
index e6c3c703..36638b95 100644
--- a/lib/transaction.py
+++ b/lib/transaction.py
@@ -378,7 +378,7 @@ def get_address_from_output_script(bytes):
 
 class Transaction:
     
-    def __init__(self, raw, is_complete = True):
+    def __init__(self, raw):
         self.raw = raw
         self.deserialize()
         self.inputs = self.d['inputs']