diff --git a/ubiquity/plugins/ubi-prepare.py b/ubiquity/plugins/ubi-prepare.py
index 6f5d1fe51..533038125 100644
--- a/ubiquity/plugins/ubi-prepare.py
+++ b/ubiquity/plugins/ubi-prepare.py
@@ -187,8 +187,9 @@ class PageGtk(PreparePageBase):
             template = 'ubiquity/text/label_download_updates'
         else:
             template = 'ubiquity/text/label_download_updates_na'
-        self.label_download_updates.set_label(
-            self.controller.get_string(template))
+        label_text = self.controller.get_string(template)
+        if label_text is not None:
+            self.label_download_updates.set_label(label_text)
         self.prepare_download_updates.set_sensitive(val)
 
     def set_download_updates(self, val):