diff --git a/.github/workflows/build_test.yaml b/.github/workflows/build_test.yaml
index 77b5f59..038a1f8 100644
--- a/.github/workflows/build_test.yaml
+++ b/.github/workflows/build_test.yaml
@@ -1,4 +1,4 @@
-name: build and test
+name: test
 
 on:
   push:
diff --git a/README.md b/README.md
index 2d02e2d..757b401 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # coredumpy
 
+[![build](https://github.com/gaogaotiantian/coredumpy/actions/workflows/build_test.yaml/badge.svg)](https://github.com/gaogaotiantian/coredumpy/actions/workflows/build_test.yaml)  [![coverage](https://img.shields.io/codecov/c/github/gaogaotiantian/coredumpy)](https://codecov.io/gh/gaogaotiantian/coredumpy)  [![pypi](https://img.shields.io/pypi/v/coredumpy.svg)](https://pypi.org/project/coredumpy/)  [![support-version](https://img.shields.io/pypi/pyversions/coredumpy)](https://img.shields.io/pypi/pyversions/coredumpy)  [![sponsor](https://img.shields.io/badge/%E2%9D%A4-Sponsor%20me-%23c96198?style=flat&logo=GitHub)](https://github.com/sponsors/gaogaotiantian)
+
 coredumpy saves your crash site so you can better debug your python program.
 
 ## Highlights
diff --git a/src/coredumpy/coredumpy.py b/src/coredumpy/coredumpy.py
index 8fcf8d5..d34e0b9 100644
--- a/src/coredumpy/coredumpy.py
+++ b/src/coredumpy/coredumpy.py
@@ -53,7 +53,7 @@ def load(cls, path):
         pdb_instance = pdb.Pdb()
         pdb_instance.reset()
         pdb_instance.interaction(frame, None)
-        PyObjectProxy.clear()
+        PyObjectProxy.clear()  # pragma: no cover
 
 
 dump = Coredumpy.dump
diff --git a/src/coredumpy/py_object_proxy.py b/src/coredumpy/py_object_proxy.py
index 0bbb9e0..c7a15da 100644
--- a/src/coredumpy/py_object_proxy.py
+++ b/src/coredumpy/py_object_proxy.py
@@ -114,8 +114,6 @@ def __setattr__(self, key, value):
             self._coredumpy_attrs[key] = value
 
     def __getattr__(self, item):
-        if item.startswith("_coredumpy_"):
-            return self.__dict__[item]
         if item in self._coredumpy_attrs:
             return type(self)._proxies[self._coredumpy_attrs[item]]
         raise AttributeError(f"'{self._coredumpy_type}' object has no attribute '{item}'")