diff --git a/metrics.go b/metrics.go
index d3b6fab..eadde12 100644
--- a/metrics.go
+++ b/metrics.go
@@ -414,6 +414,7 @@ func getLastMetrics(deveui string) OneMetric {
                                  |> filter(fn: (r) => r._measurement == "measurement" and r.deveui == "%s")
                                  |> pivot(rowKey:["_time"], columnKey: ["_field"], valueColumn: "_value")
                                  |> filter(fn: (r) => r.lat != 0) 
+                                 |> sort(columns: ["_time"], desc: false)
                                  |> last(column: "_time")`, deveui))
 
 	req, err := http.NewRequest("POST", url, bytes.NewBuffer(data))