diff --git a/ultralytics/yolo/utils/__init__.py b/ultralytics/yolo/utils/__init__.py
index b77c0c6..ed1cb4f 100644
--- a/ultralytics/yolo/utils/__init__.py
+++ b/ultralytics/yolo/utils/__init__.py
@@ -37,7 +37,7 @@ AUTOINSTALL = str(os.getenv('YOLO_AUTOINSTALL', True)).lower() == 'true'  # glob
 VERBOSE = str(os.getenv('YOLO_VERBOSE', True)).lower() == 'true'  # global verbose mode
 TQDM_BAR_FORMAT = '{l_bar}{bar:10}{r_bar}'  # tqdm bar format
 LOGGING_NAME = 'ultralytics'
-MACOS, LINUX, WINDOWS = (platform.system() == x for x in {'Darwin', 'Linux', 'Windows'})  # environment booleans
+MACOS, LINUX, WINDOWS = (platform.system() == x for x in ('Darwin', 'Linux', 'Windows'))  # environment booleans
 HELP_MSG = \
     """
     Usage examples for running YOLOv8: