diff --git a/.gitignore b/.gitignore
index 001de9a..8d3e43e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,4 +36,8 @@ __pycache__
 .idea/
 
 # python
-dist/
\ No newline at end of file
+dist/
+
+# wheel
+build/
+*.whl
\ No newline at end of file
diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..b4462aa
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+include unitree_sdk2py/utils/lib/*.so
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 54d8cac..38c0468 100644
--- a/setup.py
+++ b/setup.py
@@ -8,6 +8,7 @@
       long_description_content_type="text/markdown",
       license="BSD-3-Clause",
       packages=find_packages(include=['unitree_sdk2py','unitree_sdk2py.*']),
+      include_package_data=True,
       description='Unitree robot sdk version 2 for python',
       project_urls={
             "Source Code": "https://github.com/unitreerobotics/unitree_sdk2_python",
diff --git a/unitree_sdk2py/__init__.py b/unitree_sdk2py/__init__.py
index f071aeb..a951f2d 100644
--- a/unitree_sdk2py/__init__.py
+++ b/unitree_sdk2py/__init__.py
@@ -1,4 +1,4 @@
-from . import idl, utils, core, rpc, go2, b2
+from . import idl, utils, core, rpc, go2
 
 __all__ = [
     "idl"
@@ -6,5 +6,4 @@
     "core",
     "rpc",
     "go2",
-    "b2",
 ]