fix: follow up to ba26996367

gui/kivy/uix/screens.py

@@ -137,7 +137,8 @@ class HistoryScreen(CScreen):
             rate = run_hook('history_rate', date)
             if self.app.fiat_unit:
                 quote_text = "..." if rate is None else "{0:.3} {1}".format(Decimal(value) / 100000000 * Decimal(rate), self.app.fiat_unit)
-
+            else:
+                quote_text = ''
             yield (conf, icon, time_str, label, value, tx_hash, quote_text)
 
     def update(self, see_all=False):