diff --git a/light_the_torch/_patch.py b/light_the_torch/_patch.py
index 9c1ed5b..950f6f6 100644
--- a/light_the_torch/_patch.py
+++ b/light_the_torch/_patch.py
@@ -5,7 +5,6 @@
 import itertools
 import optparse
 import os
-import platform
 import re
 import sys
 import unittest.mock
@@ -253,7 +252,7 @@ def postprocessing(input, output):
             yield
 
 
-def get_extra_index_urls(computation_backends, channel):
+def get_index_urls(computation_backends, channel):
     if channel == Channel.STABLE:
         channel_paths = [""]
     else:
@@ -284,9 +283,7 @@ def context(input):
             {
                 requirement.name
                 for requirement in input.root_reqs
-                if requirement.user_supplied
-                and not is_pinned(requirement)
-                and requirement.name in THIRD_PARTY_PACKAGES
+                if requirement.user_supplied and is_pinned(requirement)
             },
         ):
             yield
@@ -305,12 +302,10 @@ def context(input):
 
 
 @contextlib.contextmanager
-def patch_link_collection(
-    computation_backends, channel, user_supplied_third_party_packages
-):
+def patch_link_collection(computation_backends, channel, user_supplied_pinned_packages):
     search_scope = SearchScope(
         find_links=[],
-        index_urls=get_extra_index_urls(computation_backends, channel),
+        index_urls=get_index_urls(computation_backends, channel),
         no_index=False,
     )
 
@@ -319,9 +314,8 @@ def context(input):
         if not (
             input.project_name in PYTORCH_DISTRIBUTIONS
             or (
-                channel == Channel.NIGHTLY
-                and platform.system() == "Linux"
-                and input.project_name not in user_supplied_third_party_packages
+                input.project_name in THIRD_PARTY_PACKAGES
+                and input.project_name not in user_supplied_pinned_packages
             )
         ):
             yield
diff --git a/scripts/check_pytorch_package_indices.py b/scripts/check_pytorch_package_indices.py
index 6cd51d7..b946fd0 100755
--- a/scripts/check_pytorch_package_indices.py
+++ b/scripts/check_pytorch_package_indices.py
@@ -8,7 +8,7 @@
 from light_the_torch._cb import _MINIMUM_DRIVER_VERSIONS, CPUBackend, CUDABackend
 from light_the_torch._patch import (
     Channel,
-    get_extra_index_urls,
+    get_index_urls,
     PYTORCH_DISTRIBUTIONS,
     THIRD_PARTY_PACKAGES,
 )
@@ -40,11 +40,10 @@
 }
 COMPUTATION_BACKENDS.add(CPUBackend())
 
-EXTRA_INDEX_URLS = sorted(
+INDEX_URLS = sorted(
     set(
         itertools.chain.from_iterable(
-            get_extra_index_urls(COMPUTATION_BACKENDS, channel)
-            for channel in iter(Channel)
+            get_index_urls(COMPUTATION_BACKENDS, channel) for channel in iter(Channel)
         )
     )
 )
@@ -52,7 +51,7 @@
 
 def main():
     available = set()
-    for url in tqdm.tqdm(EXTRA_INDEX_URLS):
+    for url in tqdm.tqdm(INDEX_URLS):
         response = requests.get(url)
         if not response.ok:
             continue