diff --git a/weboob/backends/aum/test.py b/weboob/backends/aum/test.py
index 0e5b2a70..bf8b158b 100644
--- a/weboob/backends/aum/test.py
+++ b/weboob/backends/aum/test.py
@@ -17,6 +17,8 @@
 
 
 from weboob.tools.test import BackendTest
+from weboob.tools.browser import BrowserUnavailable
+
 
 
 __all__ = ['AuMTest']