diff --git a/debug_toolbar_user_panel/panels.py b/debug_toolbar_user_panel/panels.py
index 8441c1e..1b405f9 100644
--- a/debug_toolbar_user_panel/panels.py
+++ b/debug_toolbar_user_panel/panels.py
@@ -62,9 +62,9 @@
 from django.template.loader import render_to_string
 from django.utils.translation import ugettext_lazy as _
 
-from debug_toolbar.panels import DebugPanel
+from debug_toolbar.panels import Panel
 
-class UserPanel(DebugPanel):
+class UserPanel(Panel):
     """
     Panel that allows you to login as other recently-logged in users.
     """
@@ -82,7 +82,7 @@ def title(self):
         return _('User')
 
     def nav_subtitle(self):
-        return self.request.user.is_authenticated() and self.request.user
+        return self.request.user.is_authenticated and self.request.user
 
     def content(self):
         context = self.context.copy()
@@ -94,3 +94,7 @@ def content(self):
 
     def process_response(self, request, response):
         self.request = request
+    
+    def process_request(self, request):
+        self.request = request
+        return super().process_request(request)