diff --git a/corrlib/meas_io.py b/corrlib/meas_io.py
index be80b6f..48017a1 100644
--- a/corrlib/meas_io.py
+++ b/corrlib/meas_io.py
@@ -175,7 +175,7 @@ def load_records(path: Path, meas_paths: list[str], preloaded: dict[str, Any] =
                 if cache_enabled(path):
                     if not os.path.exists(cache_dir(path, file)):
                         os.makedirs(cache_dir(path, file))
-                    dump_object(preloaded[file][key], cache_path(path, file, key))
+                    dump_object(preloaded[file][key], str(cache_path(path, file, key)))
     return returned_data
 
 
@@ -195,7 +195,7 @@ def cache_dir(path: Path, file: str) -> Path:
         The path holding the cached data for the given file.
     """
     cache_path_list = file.split("/")[1:]
-    cache_path = path / CACHE_DIR
+    cache_path = Path(path) / CACHE_DIR
     for directory in cache_path_list:
         cache_path /= directory
     return cache_path
@@ -238,7 +238,7 @@ def preload(path: Path, file: Path) -> dict[str, Any]:
         The data read from the file.
     """
     get(path, file)
-    filedict: dict[str, Any] = pj.load_json_dict(path / file)
+    filedict: dict[str, Any] = pj.load_json_dict(str(path / file))
     print("> read file")
     return filedict