diff --git a/django/contrib/admin/sites.py b/django/contrib/admin/sites.py
index 61be31d890..3ff7088506 100644
--- a/django/contrib/admin/sites.py
+++ b/django/contrib/admin/sites.py
@@ -453,7 +453,9 @@ class AdminSite:
                 pass
             else:
                 if getattr(match.func, "should_append_slash", True):
-                    return HttpResponsePermanentRedirect("%s/" % request.path)
+                    return HttpResponsePermanentRedirect(
+                        request.get_full_path(force_append_slash=True)
+                    )
         raise Http404
 
     def _build_app_dict(self, request, label=None):
diff --git a/tests/admin_views/tests.py b/tests/admin_views/tests.py
index f1d098eb40..f440b85b6e 100644
--- a/tests/admin_views/tests.py
+++ b/tests/admin_views/tests.py
@@ -8463,6 +8463,24 @@ class AdminSiteFinalCatchAllPatternTests(TestCase):
             response, known_url, status_code=301, target_status_code=403
         )
 
+    @override_settings(APPEND_SLASH=True)
+    def test_missing_slash_append_slash_true_query_string(self):
+        superuser = User.objects.create_user(
+            username="staff",
+            password="secret",
+            email="staff@example.com",
+            is_staff=True,
+        )
+        self.client.force_login(superuser)
+        known_url = reverse("admin:admin_views_article_changelist")
+        response = self.client.get("%s?id=1" % known_url[:-1])
+        self.assertRedirects(
+            response,
+            f"{known_url}?id=1",
+            status_code=301,
+            fetch_redirect_response=False,
+        )
+
     @override_settings(APPEND_SLASH=True)
     def test_missing_slash_append_slash_true_script_name(self):
         superuser = User.objects.create_user(
@@ -8481,6 +8499,24 @@ class AdminSiteFinalCatchAllPatternTests(TestCase):
             fetch_redirect_response=False,
         )
 
+    @override_settings(APPEND_SLASH=True)
+    def test_missing_slash_append_slash_true_script_name_query_string(self):
+        superuser = User.objects.create_user(
+            username="staff",
+            password="secret",
+            email="staff@example.com",
+            is_staff=True,
+        )
+        self.client.force_login(superuser)
+        known_url = reverse("admin:admin_views_article_changelist")
+        response = self.client.get("%s?id=1" % known_url[:-1], SCRIPT_NAME="/prefix/")
+        self.assertRedirects(
+            response,
+            f"/prefix{known_url}?id=1",
+            status_code=301,
+            fetch_redirect_response=False,
+        )
+
     @override_settings(APPEND_SLASH=True, FORCE_SCRIPT_NAME="/prefix/")
     def test_missing_slash_append_slash_true_force_script_name(self):
         superuser = User.objects.create_user(