diff --git a/ucs-4.1-0/management/univention-directory-manager-modules/modules/univention/admin/modules.py b/ucs-4.1-0/management/univention-directory-manager-modules/modules/univention/admin/modules.py
index c12e911..a118c97 100644
--- a/ucs-4.1-0/management/univention-directory-manager-modules/modules/univention/admin/modules.py
+++ b/ucs-4.1-0/management/univention-directory-manager-modules/modules/univention/admin/modules.py
@@ -73,7 +73,11 @@ def _walk(root, dir, files):
 			ud.debug(ud.ADMIN, ud.INFO, 'admin.modules.update: importing "%s"' % p)
 			parts=p.split(os.path.sep)
 			mod, name='.'.join(parts), '/'.join(parts)
-			m=__import__(mod, globals(), locals(), name)
+			try:
+				m = __import__(mod, globals(), locals(), name)
+			except ImportError as exc:
+				ud.debug(ud.ADMIN, ud.ERROR, 'admin.modules.update: import of %s failed: %s\n%s' % (p, exc, traceback.format_exc()))
+				continue
 			m.initialized=0
 			if not hasattr(m, 'module'):
 				ud.debug(ud.ADMIN, ud.ERROR, 'admin.modules.update: attribute "module" is missing in module %r' % (mod,))