diff --git a/Convert_Matlab/overlap_v6.py b/Convert_Matlab/overlap_v6.py
index c8c28464605c5395d4602ea6a70e702d41f1db13..e276b8e5d0e6d2ac4337c8a2c9ec4a2a52084544 100755
--- a/Convert_Matlab/overlap_v6.py
+++ b/Convert_Matlab/overlap_v6.py
@@ -38,7 +38,7 @@ d_init = to_days_1950(date_num[0])
 with open("node_id_param.json", "w") as f:
     json.dump({"e_overestim": e_overestim, "d_init": d_init}, f)
 
-with open(f"edgelist.csv", "w", newline = '') as edgelist:
+with open("edgelist.csv", "w", newline = '') as edgelist:
     writer = csv.writer(edgelist, delimiter = ' ', lineterminator = "\n")
 
     for j1 in range(n_dates):