diff --git a/weboob/core/modules.py b/weboob/core/modules.py
index 6558fba23e24f8697c6a893dac80e416a6324705..b8e9035f1835873097b5bdb112613a882b2c11f2 100644
--- a/weboob/core/modules.py
+++ b/weboob/core/modules.py
@@ -89,8 +89,8 @@ def has_caps(self, *caps):
                 return True
         return False
 
-    def create_instance(self, weboob, backend_name, config, storage, nofail=False):
-        backend_instance = self.klass(weboob, backend_name, config, storage, self.logger, nofail)
+    def create_instance(self, weboob, backend_name, config, storage, nofail=False, logger=None):
+        backend_instance = self.klass(weboob, backend_name, config, storage, logger=logger or self.logger, nofail=nofail)
         self.logger.debug(u'Created backend "%s" for module "%s"' % (backend_name, self.name))
         return backend_instance
 
diff --git a/weboob/core/ouiboube.py b/weboob/core/ouiboube.py
index eb3882dc1fd1899264e4e0cbc6b5e442f5a6bb36..5720e678e5fa6331cfb66e99f6a152f5d885b6ab 100644
--- a/weboob/core/ouiboube.py
+++ b/weboob/core/ouiboube.py
@@ -89,7 +89,7 @@ def deinit(self):
         """
         self.unload_backends()
 
-    def build_backend(self, module_name, params=None, storage=None, name=None, nofail=False):
+    def build_backend(self, module_name, params=None, storage=None, name=None, nofail=False, logger=None):
         """
         Create a backend.
 
@@ -109,7 +109,7 @@ def build_backend(self, module_name, params=None, storage=None, name=None, nofai
         """
         module = self.modules_loader.get_or_load_module(module_name)
 
-        backend_instance = module.create_instance(self, name or module_name, params or {}, storage, nofail)
+        backend_instance = module.create_instance(self, name or module_name, params or {}, storage, nofail, logger=logger or self.logger)
         return backend_instance
 
     class LoadError(Exception):