diff --git a/agkyra/agkyra/syncer/syncer.py b/agkyra/agkyra/syncer/syncer.py
index 131dd67b610a5daffef452aaf20561d211c3b8c7..07c5cda45774d356513a4775efcf86ff9b6a735e 100644
--- a/agkyra/agkyra/syncer/syncer.py
+++ b/agkyra/agkyra/syncer/syncer.py
@@ -69,8 +69,8 @@ class FileSyncer(object):
         if self.decide_event is not None:
             self.decide_event.clear()
 
-    def get_next_message(self):
-        return self.messager.get(block=False)
+    def get_next_message(self, block=False):
+        return self.messager.get(block=block)
 
     def exclude_file(self, objname):
         parts = objname.split(common.OBJECT_DIRSEP)