diff --git a/corrlib/meas_io.py b/corrlib/meas_io.py
index 48017a1..0f9ac02 100644
--- a/corrlib/meas_io.py
+++ b/corrlib/meas_io.py
@@ -59,7 +59,7 @@ def write_measurement(path: Path, ensemble: str, measurement: dict[str, dict[str
                 if file not in files_to_save:
                     unlock(path, file_in_archive)
                     files_to_save.append(file_in_archive)
-                known_meas = pj.load_json_dict(file, verbose=False)
+                known_meas = pj.load_json_dict(str(file), verbose=False)
         if code == "sfcf":
             if parameter_file is not None:
                 parameters = sfcf.read_param(path, uuid, parameter_file)
@@ -113,7 +113,7 @@ def write_measurement(path: Path, ensemble: str, measurement: dict[str, dict[str
                 c.execute("INSERT INTO backlogs (name, ensemble, code, path, project, parameters, parameter_file, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?, ?, datetime('now'), datetime('now'))",
                                                 (corr, ensemble, code, meas_path, uuid, pars[subkey], parameter_file))
         conn.commit()
-        pj.dump_dict_to_json(known_meas, file)
+        pj.dump_dict_to_json(known_meas, str(file))
     conn.close()
     save(path, message="Add measurements to database", files=files_to_save)
     return
@@ -269,11 +269,11 @@ def drop_record(path: Path, meas_path: str) -> None:
         raise ValueError("This measurement does not exist as an entry!")
 
     conn.commit()
-    known_meas = pj.load_json_dict(file)
+    known_meas = pj.load_json_dict(str(file))
     if sub_key in known_meas:
         del known_meas[sub_key]
         unlock(path, Path(file_in_archive))
-        pj.dump_dict_to_json(known_meas, file)
+        pj.dump_dict_to_json(known_meas, str(file))
         save(path, message="Drop measurements to database", files=[db, file])
         return
     else: