diff --git a/base/py/app.py b/base/py/app.py
index 6fb6f1e2..0748ac2c 100644
--- a/base/py/app.py
+++ b/base/py/app.py
@@ -218,8 +218,13 @@ class DupeGuru(RegistrableApplication):
                 changed_groups.add(g)
     
     def save(self):
-        self.directories.save_to_file(op.join(self.appdata, 'last_directories.xml'))
-        self.results.save_to_xml(op.join(self.appdata, 'last_results.xml'))
+        try:
+            self.directories.save_to_file(op.join(self.appdata, 'last_directories.xml'))
+            self.results.save_to_xml(op.join(self.appdata, 'last_results.xml'))
+        except LookupError:
+            # This is that weird issue from #39 that sometimes happens when auto-updating with
+            # Sparkle. Just ignore it.
+            pass
     
     def save_ignore_list(self):
         p = op.join(self.appdata, 'ignore_list.xml')