diff --git a/deploy/python/det_keypoint_unite_utils.py b/deploy/python/det_keypoint_unite_utils.py
index ccd4a9b45bf57ec5961e4ecaa28504d12a815a67..26344628a3e10457a394f351fc64f7049a4245bb 100644
--- a/deploy/python/det_keypoint_unite_utils.py
+++ b/deploy/python/det_keypoint_unite_utils.py
@@ -112,7 +112,7 @@ def argsparser():
         "calibration, trt_calib_mode need to set True.")
     parser.add_argument(
         '--use_dark',
-        type=bool,
+        type=ast.literal_eval,
         default=True,
         help='whether to use darkpose to get better keypoint position predict ')
     parser.add_argument(
diff --git a/deploy/python/utils.py b/deploy/python/utils.py
index 1ab86b1f4e0067e6006baec0f96fc42d092f5ad2..a0f8e352dd6af22696bf9f157b76aff66199b311 100644
--- a/deploy/python/utils.py
+++ b/deploy/python/utils.py
@@ -133,7 +133,7 @@ def argsparser():
         help="max batch_size for reid model inference.")
     parser.add_argument(
         '--use_dark',
-        type=bool,
+        type=ast.literal_eval,
         default=True,
         help='whether to use darkpose to get better keypoint position predict ')
     return parser