diff --git a/main.py b/main.py
index b1bf6ec..cf7f966 100644
--- a/main.py
+++ b/main.py
@@ -83,7 +83,7 @@ def str2bool(v):
 
 # Prepare the data
 HEAGraph = Graph_data(KGtype=args.KGtype)
-path = r'{}\{}'.format(args.dataaddr, args.KGtype)
+path = os.path.join(args.dataaddr, args.KGtype)
 graph1 = HEAGraph.load_graph_from_neo4jcsv(path, label='HEA', node_type=0)
 HEAGraph.convert_passive_active(label='HEA', active_or_passive='passive')