diff --git a/src/services/io_services.py b/src/services/io_services.py
index 01d28b9..ef69e19 100644
--- a/src/services/io_services.py
+++ b/src/services/io_services.py
@@ -24,5 +24,6 @@ def save_rps_above_threshold(readings, path):
 
 def save_filtered_flickers(readings, path):
     with open(path, mode="w") as results:
-        wtr = csv.writer(results, delimiter=',', lineterminator='\n')
-        wtr.writerows(readings)
+        wtr = csv.writer(results)
+        for item in readings:
+            wtr.writerow(item)