diff --git a/src/huggingface_hub/hf_api.py b/src/huggingface_hub/hf_api.py
index e6ed7088da..e0758c0665 100644
--- a/src/huggingface_hub/hf_api.py
+++ b/src/huggingface_hub/hf_api.py
@@ -1846,11 +1846,10 @@ def update_repo_visibility(
         else:
             namespace = organization
 
-        path_prefix = f"{self.endpoint}/api/"
-        if repo_type in REPO_TYPES_URL_PREFIXES:
-            path_prefix += REPO_TYPES_URL_PREFIXES[repo_type]
+        if repo_type is None:
+            repo_type = REPO_TYPE_MODEL  # default repo type
 
-        path = f"{path_prefix}{namespace}/{name}/settings"
+        path = f"{self.endpoint}/api/{repo_type}s/{namespace}/{name}/settings"
 
         json = {"private": private}
 
diff --git a/src/huggingface_hub/lfs.py b/src/huggingface_hub/lfs.py
index c15583088f..9d61c9e830 100644
--- a/src/huggingface_hub/lfs.py
+++ b/src/huggingface_hub/lfs.py
@@ -63,7 +63,7 @@ def install_lfs_in_userspace():
 @dataclass
 class UploadInfo:
     """
-    Dataclass holding required information to determine wether a blob
+    Dataclass holding required information to determine whether a blob
     should be uploaded to the hub using the LFS protocol or the regular protocol
 
     Args: