diff --git a/function_total_energy_by_day_and_device.sql b/function_total_energy_by_day_and_device.sql
index a144f26..8302bcf 100644
--- a/function_total_energy_by_day_and_device.sql
+++ b/function_total_energy_by_day_and_device.sql
@@ -69,7 +69,9 @@ create or replace function total_energy(p_start_day date, p_end_say date)
     v_deviceid text;
     v_result rt_totalizer_result%rowtype;
   begin
-    for v_deviceid in select distinct deviceid from power_measurement_t loop
+    for v_deviceid in select distinct deviceid 
+                        from power_measurement_t 
+    loop
       v_day := p_start_day;
       loop
         select energy