diff -r 84ef2180d1fa -r cb8b833ad122 src/hdalab/settings.py
--- a/src/hdalab/settings.py	Fri Apr 03 14:31:43 2015 +0200
+++ b/src/hdalab/settings.py	Fri Apr 03 18:41:01 2015 +0200
@@ -203,6 +203,8 @@
 SECURE_BROWSER_XSS_FILTER=True
 CSRF_COOKIE_SECURE=False
 
+SILENCED_SYSTEM_CHECKS = ['fields.W342'] # to silence a problem in registration module
+
 from hdalab.config import * #@UnusedWildImport
 
 if 'LOGIN_REDIRECT_URL' not in locals():