diff --git a/swh/web/misc/origin_save.py b/swh/web/misc/origin_save.py
--- a/swh/web/misc/origin_save.py
+++ b/swh/web/misc/origin_save.py
@@ -7,7 +7,9 @@
 
 from django.conf.urls import url
 from django.core.paginator import Paginator
-from django.http import HttpResponse, HttpResponseForbidden
+from django.http import (
+    HttpResponse, HttpResponseForbidden, HttpResponseServerError
+)
 from django.shortcuts import render
 
 from rest_framework.decorators import api_view, authentication_classes
@@ -45,6 +47,9 @@
     except ForbiddenExc as exc:
         return HttpResponseForbidden(json.dumps({'detail': str(exc)}),
                                      content_type='application/json')
+    except Exception as exc:
+        return HttpResponseServerError(json.dumps({'detail': str(exc)}),
+                                       content_type='application/json')
 
 
 def _visit_save_types_list(request):
diff --git a/swh/web/tests/misc/test_origin_save.py b/swh/web/tests/misc/test_origin_save.py
--- a/swh/web/tests/misc/test_origin_save.py
+++ b/swh/web/tests/misc/test_origin_save.py
@@ -62,6 +62,21 @@
     assert resp.status_code == 429
 
 
+def test_save_request_form_server_error(client, mocker):
+    mock_create_save_origin_request = mocker.patch(
+        'swh.web.misc.origin_save.create_save_origin_request')
+    mock_create_save_origin_request.side_effect = Exception('Server error')
+
+    url = reverse('origin-save-request',
+                  url_args={'visit_type': visit_type,
+                            'origin_url': origin['url']})
+
+    data = _get_csrf_token(client, reverse('origin-save'))
+
+    resp = client.post(url, data=data)
+    assert resp.status_code == 500
+
+
 def test_old_save_url_redirection(client):
     url = reverse('browse-origin-save')
     resp = client.get(url)