fix #4003

7 years ago · 7816edc342
1 changed files with 2 additions and 1 deletions
--- a/lib/plugins.py
+++ b/lib/plugins.py
@ -502,7 +502,8 @@ class DeviceMgr(ThreadJob, PrintError):
        info = infos[c]
        # save new label
        keystore.set_label(info.label)
-        handler.win.wallet.save_keystore()
+        if handler.win.wallet is not None:
+            handler.win.wallet.save_keystore()
        return info

    def scan_devices(self):