diff --git a/examples/pybullet/gym/pybullet_utils/bullet_client.py b/examples/pybullet/gym/pybullet_utils/bullet_client.py
index a477f5c4d..0eb09f8a2 100644
--- a/examples/pybullet/gym/pybullet_utils/bullet_client.py
+++ b/examples/pybullet/gym/pybullet_utils/bullet_client.py
@@ -41,7 +41,8 @@ class BulletClient(object):
   def __getattr__(self, name):
     """Inject the client id into Bullet functions."""
     attribute = getattr(pybullet, name)
-    attribute = functools.partial(attribute, physicsClientId=self._client)
+    if inspect.isbuiltin(attribute):
+      attribute = functools.partial(attribute, physicsClientId=self._client)
     if name=="disconnect":
       self._client = -1 
     return attribute