diff --git a/flatpak_builder_lint/checks/flatmanager.py b/flatpak_builder_lint/checks/flatmanager.py
index 45d153a5..9f9352c4 100644
--- a/flatpak_builder_lint/checks/flatmanager.py
+++ b/flatpak_builder_lint/checks/flatmanager.py
@@ -74,14 +74,14 @@ def check_repo(self, path: str) -> None:
                         self.errors.add("flat-manager-branch-repo-mismatch")
                         break
 
-                with (
-                    tempfile.TemporaryDirectory() as tmpdir,
-                    gzip.open(
-                        f"{path}/appstream/{arches.pop()}/appstream.xml.gz", "rb"
-                    ) as appstream_gz,
-                    open(f"{tmpdir}/appstream.xml", "wb") as appstream_file,
-                ):
-                    shutil.copyfileobj(appstream_gz, appstream_file)
+                with tempfile.TemporaryDirectory() as tmpdir:
+                    with (
+                        gzip.open(
+                            f"{path}/appstream/{arches.pop()}/appstream.xml.gz", "rb"
+                        ) as appstream_gz,
+                        open(f"{tmpdir}/appstream.xml", "wb") as appstream_file,
+                    ):
+                        shutil.copyfileobj(appstream_gz, appstream_file)
 
                     if not appstream.has_manifest_key(f"{tmpdir}/appstream.xml"):
                         self.errors.add("appstream-no-flathub-manifest-key")