diff --git a/swh/web/common/exc.py b/swh/web/common/exc.py
--- a/swh/web/common/exc.py
+++ b/swh/web/common/exc.py
@@ -7,7 +7,6 @@
 
 from django.http import HttpResponse
 from django.shortcuts import render
-from django.utils.safestring import mark_safe
 
 from swh.web.config import get_config
 
@@ -58,7 +57,7 @@
     return render(request, 'error.html',
                   {'error_code': error_code,
                    'error_message': http_status_code_message[error_code],
-                   'error_description': mark_safe(error_description)},
+                   'error_description': error_description},
                   status=error_code)