diff --git a/parsers/drawings.py b/parsers/drawings.py
index 1ea7df9..f77ebc4 100644
--- a/parsers/drawings.py
+++ b/parsers/drawings.py
@@ -534,8 +534,8 @@ def load_drawings_files():
     DataIssue.objects.filter(parser="Tunnel").delete()
     DataIssue.objects.filter(parser="z_Therion").delete()
     DataIssue.objects.filter(parser="z_Tunnel").delete()
-    if os.path.isfile("therionrefs.log"):
-        os.remove("therionrefs.log")
+    if (drawdatadir / "therionrefs.log").is_file():
+        (drawdatadir / "therionrefs.log").unlink()
 
     # Walk the tree with pathlib, skip hidden and backup files
     files_meta = []  # list of tuples (ext, rel_path, dwgname, pathobj)