diff --git a/tariff/entsoe.go b/tariff/entsoe.go
index 99f16d055..a7f2a9e30 100644
--- a/tariff/entsoe.go
+++ b/tariff/entsoe.go
@@ -138,7 +138,7 @@ func (t *Entsoe) run(done chan error) {
 		}
 
 		// extract desired series
-		res, err := entsoe.GetTsPriceData(tr.TimeSeries, entsoe.ResolutionHour)
+		res, err := entsoe.GetTsPriceData(tr.TimeSeries, entsoe.ResolutionQuarterHour)
 		if err != nil {
 			once.Do(func() { done <- err })
 			t.log.ERROR.Println(err)