diff --git a/src/calibre/gui2/wizard/__init__.py b/src/calibre/gui2/wizard/__init__.py
index aa43fa1555..2a0794e75c 100644
--- a/src/calibre/gui2/wizard/__init__.py
+++ b/src/calibre/gui2/wizard/__init__.py
@@ -447,7 +447,7 @@ class KindlePage(QWizardPage, KindleUI):
         if has_default:
             accs = [x for x in accs if x[1]]
         if accs:
-            self.to_address.setText(accs[0])
+            self.to_address.setText(accs[0][0])
         def x():
             t = unicode(self.to_address.text())
             if t.strip():