diff --git a/src/antsibull_core/config.py b/src/antsibull_core/config.py
index 1b401e9..6b4c143 100644
--- a/src/antsibull_core/config.py
+++ b/src/antsibull_core/config.py
@@ -52,7 +52,7 @@ def find_config_files(conf_files: Iterable[StrPath]) -> list[str]:
     config_files = []
     for conf_path in paths:
         if os.path.exists(conf_path):
-            config_files.append(f"{conf_path}")
+            config_files.append(str(conf_path))
     flog.fields(paths=config_files).info("Paths found")
 
     flog.debug("Leave")
diff --git a/src/antsibull_core/tarball.py b/src/antsibull_core/tarball.py
index 9b92cb5..f19058d 100644
--- a/src/antsibull_core/tarball.py
+++ b/src/antsibull_core/tarball.py
@@ -32,7 +32,7 @@ async def unpack_tarball(tarname: StrPath, destdir: StrPath) -> str:
     :returns: Toplevel of the unpacked directory structure.  This will be
         a subdirectory of `destdir`.
     """
-    tarname_str = f"{tarname}"
+    tarname_str = str(tarname)
     manifest = await async_log_run(["tar", "-xzvf", tarname_str, f"-C{destdir}"])
     toplevel_dirs = [
         filename