diff --git a/modules/config.py b/modules/config.py
index eef986ac..11481bb9 100644
--- a/modules/config.py
+++ b/modules/config.py
@@ -387,7 +387,7 @@ default_black_out_nsfw = get_config_item_or_set_default(
 default_inpaint_mask_model = get_config_item_or_set_default(
     key='default_inpaint_mask_model',
     default_value='isnet-general-use',
-    validator=lambda x: isinstance(x, str)
+    validator=lambda x: x in modules.flags.inpaint_mask_models
 )
 
 config_dict["default_loras"] = default_loras = default_loras[:5] + [['None', 1.0] for _ in range(5 - len(default_loras))]
diff --git a/modules/flags.py b/modules/flags.py
index 83c67753..ad2acfee 100644
--- a/modules/flags.py
+++ b/modules/flags.py
@@ -48,7 +48,7 @@ performance_selections = [
 output_formats = ['png', 'jpg', 'webp']
 
 inpaint_mask_models = [
-    'u2net', 'u2netp', 'u2net_human_seg', 'u2net_cloth_seg', 'silueta', 'isnet-general-use', 'isnet-anime', 'sam'
+    'u2net', 'u2netp', 'silueta', 'isnet-general-use', 'isnet-anime'
 ]
 
 inpaint_option_default = 'Inpaint or Outpaint (default)'