diff --git a/plugins/python/example_io_plugin.py b/plugins/python/example_io_plugin.py
index cfe908900..6c44c39ed 100644
--- a/plugins/python/example_io_plugin.py
+++ b/plugins/python/example_io_plugin.py
@@ -63,6 +63,7 @@ class SudoIOPlugin(sudo.Plugin):
     def __del__(self):
         if hasattr(self, "_log_file"):
             self._log("", "-- Plugin DESTROYED --")
+            self._log_file.close()
 
     def open(self, argv: Tuple[str, ...], command_info: Tuple[str, ...]) -> int:
         """Receives the command the user wishes to run.
diff --git a/plugins/python/regress/testdata/check_example_io_plugin_fails_with_python_backtrace.stdout b/plugins/python/regress/testdata/check_example_io_plugin_fails_with_python_backtrace.stdout
index 3177aa975..4bdfc6a7a 100644
--- a/plugins/python/regress/testdata/check_example_io_plugin_fails_with_python_backtrace.stdout
+++ b/plugins/python/regress/testdata/check_example_io_plugin_fails_with_python_backtrace.stdout
@@ -2,6 +2,6 @@ Example sudo python plugin will log to /some/not/writable/directory/sudo.log
 Traceback:
   File "SRC_DIR/example_io_plugin.py", line 60, in __init__
     self._open_log_file(path.join(log_path, "sudo.log"))
-  File "SRC_DIR/example_io_plugin.py", line 131, in _open_log_file
+  File "SRC_DIR/example_io_plugin.py", line 132, in _open_log_file
     self._log_file = open(log_path, "a")