diff --git a/ocv_corner_tracker.py b/ocv_corner_tracker.py
index 0330083..6f7f3d2 100644
--- a/ocv_corner_tracker.py
+++ b/ocv_corner_tracker.py
@@ -395,7 +395,7 @@ if __name__ == '__main__':
 				key_wait = -1
 
 	# writing to csv file
-	if len(result_csv) > 0:
+	if len(result_csv[0]) > 0:
 		i = 1
 		for result in result_csv:
 			filename = f"{args.name}_{i}.csv"