diff --git a/src/main/java/ru/ulstu/service/TimeSeriesService.java b/src/main/java/ru/ulstu/service/TimeSeriesService.java
index dcc1c5b..c659b56 100644
--- a/src/main/java/ru/ulstu/service/TimeSeriesService.java
+++ b/src/main/java/ru/ulstu/service/TimeSeriesService.java
@@ -58,7 +58,7 @@ public class TimeSeriesService {
 
     public TimeSeries getGroupedTendencies(TimeSeries timeSeries) {
         try {
-            timeSeries = getMaxSmoothedTimeSeries(timeSeries).getTimeSeries();
+            timeSeries = smoothTimeSeries(timeSeries, "FTransform").getTimeSeries();
         } catch (Exception e) {
             e.printStackTrace();
         }