diff --git a/python/paddle/fluid/__init__.py b/python/paddle/fluid/__init__.py
index ac2a7ea47e3dd676b8c5a099afc9afea7f6470f7..ff651db043e85ce2932f61ef9f1e0080aa8c5792 100644
--- a/python/paddle/fluid/__init__.py
+++ b/python/paddle/fluid/__init__.py
@@ -120,7 +120,6 @@ def __bootstrap__():
         'reader_queue_speed_test_mode', 'print_sub_graph_dir'
     ]
     if 'Darwin' not in sysstr:
-        print("aaaaa")
         read_env_flags.append('use_pinned_memory')
 
     if os.name != 'nt':