diff --git a/data/external/timesegments_daily.csv b/data/external/timesegments_daily.csv
index 654de8cd..605a4a53 100644
--- a/data/external/timesegments_daily.csv
+++ b/data/external/timesegments_daily.csv
@@ -1,2 +1,2 @@
 label,start_time,length,repeats_on,repeats_value
-daily,03:59:59,23H 59M 59S,every_day,0
+daily,04:00:00,23H 59M 59S,every_day,0
diff --git a/rules/preprocessing.smk b/rules/preprocessing.smk
index cb2e874a..cd83b95b 100644
--- a/rules/preprocessing.smk
+++ b/rules/preprocessing.smk
@@ -27,7 +27,7 @@ rule prepare_participants_csv:
     params:
         data_configuration = config["PHONE_DATA_STREAMS"][config["PHONE_DATA_STREAMS"]["USE"]],
         participants_table = "participants",
-        device_id_table = "light_sensor",
+        device_id_table = "esm",
         start_end_date_table = "esm"
     output:
         participants_file = config["CREATE_PARTICIPANT_FILES"]["CSV_FILE_PATH"]