diff --git a/src/ifctester/webapp/app.py b/src/ifctester/webapp/app.py
index 95e25b6b70..56f21d020e 100644
--- a/src/ifctester/webapp/app.py
+++ b/src/ifctester/webapp/app.py
@@ -58,6 +58,7 @@ def audit():
     filename = ifcopenshell.guid.new()
     ids_filepath = os.path.join("uploads", filename + ".ids")
     ifc_filepath = os.path.join("uploads", filename + ".ifc")
+    os.makedirs("uploads", exist_ok=True)
     request.files.get("ids").save(ids_filepath)
     request.files.get("ifc").save(ifc_filepath)