diff --git a/gui/qt/main_window.py b/gui/qt/main_window.py
index fa5e3e33..b5d4a5a8 100644
--- a/gui/qt/main_window.py
+++ b/gui/qt/main_window.py
@@ -689,6 +689,9 @@ class ElectrumWindow(QMainWindow):
         for item in self.wallet.get_history(self.current_account):
             tx_hash, conf, value, timestamp, balance = item
             time_str = _("unknown")
+            if conf is None and timestamp is None:
+                continue  # skip history in offline mode
+
             if conf > 0:
                 time_str = self.format_time(timestamp)
             if conf == -1:
diff --git a/lib/wallet.py b/lib/wallet.py
index 74230e84..33a7279b 100644
--- a/lib/wallet.py
+++ b/lib/wallet.py
@@ -744,7 +744,8 @@ class Abstract_Wallet(object):
             #balance += value
             conf, timestamp = self.verifier.get_confirmations(tx_hash) if self.verifier else (None, None)
             history.append( (tx_hash, conf, value, timestamp) )
-        history.sort(key = lambda x: self.verifier.get_txpos(x[0]))
+        if self.verifier:
+            history.sort(key = lambda x: self.verifier.get_txpos(x[0]))
 
         c, u = self.get_balance(domain)
         balance = c + u