diff --git a/tools/update_pre_commit_excluded_addons.py b/tools/update_pre_commit_excluded_addons.py
index 5b2fec87..a42d635f 100644
--- a/tools/update_pre_commit_excluded_addons.py
+++ b/tools/update_pre_commit_excluded_addons.py
@@ -6,6 +6,7 @@
 
 PRE_COMMIT_FILE_PATH = ".pre-commit-config.yaml"
 COVERAGE_FILE_PATH = ".coveragerc"
+GITIGNORE_FILE_PATH = ".gitignore"
 PRE_COMMIT_EXCLUDE_SEPARATOR = "# NOT INSTALLABLE ADDONS"
 PRE_COMMIT_EXCLUDE_SEPARATOR_END = "# END NOT INSTALLABLE ADDONS"
 
@@ -108,6 +109,12 @@ def main(addons_dir):
             # END NOT INSTALLABLE ADDONS
     ..
 
+    In .gitignore
+
+    .. code-block:: text
+        # NOT INSTALLABLE ADDONS
+        # END NOT INSTALLABLE ADDONS
+
     """
     not_installable_addons_dir = []
     addons = os.listdir(addons_dir or ".")
@@ -122,6 +129,9 @@ def main(addons_dir):
     update_not_installable_addons_dir_in_file(
         not_installable_addons_dir, COVERAGE_FILE_PATH, "{addon_dir}/*", "\n"
     )
+    update_not_installable_addons_dir_in_file(
+        not_installable_addons_dir, GITIGNORE_FILE_PATH, "/{addon_dir}", "\n"
+    )
 
 
 if __name__ == "__main__":