diff --git a/gui/qt/main_window.py b/gui/qt/main_window.py
index 480ca515..f6b2f0b0 100644
--- a/gui/qt/main_window.py
+++ b/gui/qt/main_window.py
@@ -2501,7 +2501,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
         block_ex_label = HelpLabel(_('Online Block Explorer') + ':', msg)
         block_ex_combo = QComboBox()
         block_ex_combo.addItems(block_explorers)
-        block_ex_combo.setCurrentIndex(block_explorers.index(block_explorer(self.config)))
+        block_ex_combo.setCurrentIndex(block_ex_combo.findText(block_explorer(self.config)))
         def on_be(x):
             be_result = block_explorers[block_ex_combo.currentIndex()]
             self.config.set_key('block_explorer', be_result, True)