diff --git a/nanochat/execution.py b/nanochat/execution.py
index cda179d..181ddb2 100644
--- a/nanochat/execution.py
+++ b/nanochat/execution.py
@@ -127,8 +127,6 @@ def chdir(root):
     os.chdir(root)
     try:
         yield
-    except BaseException as exc:
-        raise exc
     finally:
         os.chdir(cwd)