diff --git a/weboob/tools/application/qt/backendcfg.py b/weboob/tools/application/qt/backendcfg.py
index 9ef512a869590bb4ac221ee6d12a2632a247667d..40f5bd0f0291be8098b3e2bef09062d449f0061a 100644
--- a/weboob/tools/application/qt/backendcfg.py
+++ b/weboob/tools/application/qt/backendcfg.py
@@ -253,15 +253,17 @@ def editBackend(self, name=None):
 
             params.pop('_enabled', None)
 
-            info = self.weboob.repositories.get_module_info(name)
+            info = self.weboob.repositories.get_module_info(bname)
             if info and (info.is_installed() or self.installModule(info)):
-                backend = self.weboob.modules_loader.get_or_load_module(bname)
-                for key, value in backend.config.load(self.weboob, bname, name, params, nofail=True).iteritems():
+                module = self.weboob.modules_loader.get_or_load_module(bname)
+                for key, value in module.config.load(self.weboob, bname, name, params, nofail=True).iteritems():
                     try:
                         l, widget = self.config_widgets[key]
                     except KeyError:
                         warning('Key "%s" is not found' % key)
                     else:
+                        # Do not prompt user for value (for example a password if it is empty).
+                        value.noprompt = True
                         widget.set_value(value)
                 return