diff --git a/CHANGELOG.md b/CHANGELOG.md
index a46c3a97b..ec707da8f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ Find out more about isort's release policy [here](https://pycqa.github.io/isort/
 ### 5.10.0 TBD
   - Implemented #1796: Switch to `tomli` for pyproject.toml configuration loader.
   - Fixed #1801: CLI bug (--exend-skip-glob, overrides instead of extending).
+  - Fixed #1802: respect PATH customization in nested calls to git.
 
 #### Potentially breaking changes:
   - Fixed #1785: `_ast` module incorrectly excluded from stdlib definition.
diff --git a/isort/settings.py b/isort/settings.py
index 67c4b7932..3752b6336 100644
--- a/isort/settings.py
+++ b/isort/settings.py
@@ -538,7 +538,7 @@ def is_supported_filetype(self, file_name: str) -> bool:
             return bool(_SHEBANG_RE.match(line))
 
     def _check_folder_gitignore(self, folder: str) -> Optional[Path]:
-        env = {"LANG": "C.UTF-8"}
+        env = {**os.environ, "LANG": "C.UTF-8"}
         try:
             topfolder_result = subprocess.check_output(  # nosec # skipcq: PYL-W1510
                 ["git", "-C", folder, "rev-parse", "--show-toplevel"], encoding="utf-8", env=env